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  1. Thai AC, Mohan V, Khalid BA, Cockram CS, Pan CY, Zimmet P, et al.
    Diabetes Res Clin Pract, 2008 May;80(2):224-30.
    PMID: 18207602 DOI: 10.1016/j.diabres.2007.12.003
    In this paper, the islet autoimmunity status and relation to clinical characteristics, beta cell function and cardio-metabolic risk factors in young-onset Asian diabetic patients are evaluated at baseline. The study population consisted of 912 patients (from China, India, Malaysia and Singapore) with age 12-40 years and diabetes duration <12 months. Autoantibodies to glutamic acid decarboxylase (GADA) and tyrosine phosphatase (IA-2A), beta cell function and cardio-metabolic risk parameters were assessed. Among our young patient cohort, 105 (11.5%) patients were GADA and/or IA-2A positives (Ab +ve). Ab +ve patients were younger, leaner, had more severe hyperglycaemia and lower beta cell function. The frequency of metabolic syndrome was significantly lower in Ab +ve patients (27%) compared to Ab -ve patients (54%). However, a substantial proportion of patients in both groups of patients had atherogenic dyslipidaemia, hypertension and albuminuria (micro or macro). In our study cohort, only one in 10 Asian youth with new-onset diabetes had evidence of islet autoimmunity. At least 60% of Ab +ve and 50% of Ab -ve patients demonstrated classical features of type 1 and type 2 diabetes respectively. Regardless of autoimmunity status, the cardio-metabolic risk factors, in particular atherogenic dyslipidaemia, hypertension and albuminuria were common in our patients with young-onset diabetes.
    Matched MeSH terms: Age of Onset
  2. Alowayesh MS, Ahmed SF, Al-Hashel J, Alroughani R
    PLoS One, 2019;14(5):e0216646.
    PMID: 31086393 DOI: 10.1371/journal.pone.0216646
    BACKGROUND: Multiple Sclerosis (MS) is a chronic neurological disease with heavy economic and social burdens resulting in significant disability.

    OBJECTIVE: This study aims to (1) measure the cost of health resources utilization by MS patients and (2) to examine the difference in utilization and its attributed costs amongst patients who may have a different course of MS and expanded disability status scale (EDSS) scores.

    METHODS: A cross-sectional study using Kuwait National MS registry was conducted to estimate the costs of utilization of resources from 2011 to 2015.

    RESULTS: Between the period 2011-2015, 1344 MS patients were included in the registry. The average annual cost per MS patient has increased from $10,271 in 2011 to $17,296 in 2015. Utilization of disease-modifying therapies (DMTs) was the main driver of costs reaching 89.9% in 2015. Throughout the five-year period, the occurrence of relapses decreased from 21.8% to 12.2% (p <0.0001). During this same period, ambulatory relapse treatment increased by 5.8% while hospitalizations decreased by 2.6%. Patients with a moderate EDSS score (3.5-6) had the highest average cost (p<0.0001) compared to mild and severe EDSS scores.

    CONCLUSIONS: Multiple sclerosis has been a significant economic burden on the Kuwait healthcare system. DMTs are the main driver of cost.

    Matched MeSH terms: Age of Onset
  3. Vijay A, Bazazi AR, Yee I, Kamarulzaman A, Altice FL
    J Subst Abuse Treat, 2015 Jul;54:29-36.
    PMID: 25841703 DOI: 10.1016/j.jsat.2015.01.014
    Little is known about attitudes toward and experiences with opioid maintenance therapy (OMT) among people who inject drugs in Malaysia, a country where people who inject drugs comprise 1.3% of the adult population.
    Matched MeSH terms: Age of Onset
  4. Rebbeck TR, Mitra N, Wan F, Sinilnikova OM, Healey S, McGuffog L, et al.
    JAMA, 2015 Apr 07;313(13):1347-61.
    PMID: 25849179 DOI: 10.1001/jama.2014.5985
    IMPORTANCE: Limited information about the relationship between specific mutations in BRCA1 or BRCA2 (BRCA1/2) and cancer risk exists.

    OBJECTIVE: To identify mutation-specific cancer risks for carriers of BRCA1/2.

    DESIGN, SETTING, AND PARTICIPANTS: Observational study of women who were ascertained between 1937 and 2011 (median, 1999) and found to carry disease-associated BRCA1 or BRCA2 mutations. The international sample comprised 19,581 carriers of BRCA1 mutations and 11,900 carriers of BRCA2 mutations from 55 centers in 33 countries on 6 continents. We estimated hazard ratios for breast and ovarian cancer based on mutation type, function, and nucleotide position. We also estimated RHR, the ratio of breast vs ovarian cancer hazard ratios. A value of RHR greater than 1 indicated elevated breast cancer risk; a value of RHR less than 1 indicated elevated ovarian cancer risk.

    EXPOSURES: Mutations of BRCA1 or BRCA2.

    MAIN OUTCOMES AND MEASURES: Breast and ovarian cancer risks.

    RESULTS: Among BRCA1 mutation carriers, 9052 women (46%) were diagnosed with breast cancer, 2317 (12%) with ovarian cancer, 1041 (5%) with breast and ovarian cancer, and 7171 (37%) without cancer. Among BRCA2 mutation carriers, 6180 women (52%) were diagnosed with breast cancer, 682 (6%) with ovarian cancer, 272 (2%) with breast and ovarian cancer, and 4766 (40%) without cancer. In BRCA1, we identified 3 breast cancer cluster regions (BCCRs) located at c.179 to c.505 (BCCR1; RHR = 1.46; 95% CI, 1.22-1.74; P = 2 × 10(-6)), c.4328 to c.4945 (BCCR2; RHR = 1.34; 95% CI, 1.01-1.78; P = .04), and c. 5261 to c.5563 (BCCR2', RHR = 1.38; 95% CI, 1.22-1.55; P = 6 × 10(-9)). We also identified an ovarian cancer cluster region (OCCR) from c.1380 to c.4062 (approximately exon 11) with RHR = 0.62 (95% CI, 0.56-0.70; P = 9 × 10(-17)). In BRCA2, we observed multiple BCCRs spanning c.1 to c.596 (BCCR1; RHR = 1.71; 95% CI, 1.06-2.78; P = .03), c.772 to c.1806 (BCCR1'; RHR = 1.63; 95% CI, 1.10-2.40; P = .01), and c.7394 to c.8904 (BCCR2; RHR = 2.31; 95% CI, 1.69-3.16; P = .00002). We also identified 3 OCCRs: the first (OCCR1) spanned c.3249 to c.5681 that was adjacent to c.5946delT (6174delT; RHR = 0.51; 95% CI, 0.44-0.60; P = 6 × 10(-17)). The second OCCR spanned c.6645 to c.7471 (OCCR2; RHR = 0.57; 95% CI, 0.41-0.80; P = .001). Mutations conferring nonsense-mediated decay were associated with differential breast or ovarian cancer risks and an earlier age of breast cancer diagnosis for both BRCA1 and BRCA2 mutation carriers.

    CONCLUSIONS AND RELEVANCE: Breast and ovarian cancer risks varied by type and location of BRCA1/2 mutations. With appropriate validation, these data may have implications for risk assessment and cancer prevention decision making for carriers of BRCA1 and BRCA2 mutations.

    Matched MeSH terms: Age of Onset
  5. Chee KY, Yee OK, Gaillard F, Velakoulis D, Mohd Zain NR, Yogendren L, et al.
    Aust N Z J Psychiatry, 2017 Dec;51(12):1252-1253.
    PMID: 28762277 DOI: 10.1177/0004867417722642
    Matched MeSH terms: Age of Onset
  6. Deng CT, Zulkifli HI, Azizi BH
    Med J Malaysia, 1994 Dec;49(4):341-7.
    PMID: 7674969
    A child with a febrile seizure is a common cause of admission in a general paediatric ward in Malaysia. We set out to look prospectively into the clinical and epidemiological features of these children. A total of 117 children were admitted into the study. The ratio of boys to girls were 1.5:1.0. The racial breakdown was 62.4% Malays, 26.5% Indians, 8.5% Chinese and 2.6% others. The first febrile seizure occurred before the age of three years in 92.9% of our patients. The highest number of febrile seizures was in the six to 12 months age group. The average length of seizure was 9.5 minutes and the majority were non-recurrent. Febrile seizures with complex features occurred in 33.3% of the children. Upper respiratory tract infection was the most common cause of fever in our patients. There was a family history of seizures (febrile or afebrile) in 26.5% of patients.
    Matched MeSH terms: Age of Onset
  7. Syed Nong Chek SR, Robinson S, Mohd Affandi A, Baharum N
    Int J Dermatol, 2016 Oct;55(10):1092-5.
    PMID: 27061170 DOI: 10.1111/ijd.13307
    BACKGROUND: Psoriasis involving the face is visible and can cause considerable emotional distress to patients. Its presence may also confer a poorer prognosis for the patient. This study sought to evaluate the characteristics of facial psoriasis in Malaysia.

    METHODS: A cross-sectional study conducted using data from the Malaysian Psoriasis Registry from 2007 to 2011. Specific risk factors, i.e., age, age of onset, gender, duration of disease, obesity group, body surface area, Dermatology Life Quality Index (DLQI), family history of psoriasis, nail involvement, psoriatic arthritis, phototherapy, systemic therapy, clinic visit, days of work/school, and hospital admission due to psoriasis in the last 6 months were analyzed.

    RESULTS: A total of 48.4% of patients had facial psoriasis. Variables significantly associated with facial psoriasis are younger age, younger age of onset of psoriasis of ≤ 40 years, male, severity of psoriasis involving >10% of the body surface area, higher DLQI of >10, nail involvement, and history of hospitalization due to psoriasis.

    CONCLUSION: This study found that facial psoriasis is not as rare as previously thought. Ambient ultraviolet light, sebum, and contact with chemicals from facial products may reduce the severity of facial psoriasis, but these factors do not reduce the prevalence of facial psoriasis. The association with younger age, younger age of onset, higher percentage of body surface area involvement, higher DLQI of > 10, nail involvement, and hospitalization due to psoriasis support the notion that facial psoriasis is a marker of severe disease.

    Matched MeSH terms: Age of Onset
  8. Lee WS, Boey CC
    J Paediatr Child Health, 1999 Jun;35(3):260-3.
    PMID: 10404446
    OBJECTIVES: To review the causes, clinical features and outcomes of Malaysian children who had chronic diarrhoea.

    METHODOLOGY: A prospective study was performed on children with diarrhoea of more than 14 days' duration who were managed at the Department of Paediatrics, University of Malaya Medical Centre, Kuala Lumpur from 1 January 1996 to 31 December 1997.

    RESULTS: Twenty-seven patients (14 boys and 13 girls) were studied. The median age of onset of diarrhoea was 6 months and the mean duration of symptoms before referral was 66.5 days. The underlying causes of diarrhoea were found to be: (i) prolonged diarrhoea due to well-defined entities (intestinal lymphangiectasia, two cases; congenital glucose-galactose malabsorption, one case; post-small bowel resection, one case; (ii) postenteritis diarrhoea (cow's milk protein intolerance, eight cases; secondary lactose intolerance, four cases; transient monosaccharide intolerance, one case; (iii) gastrointestinal infections (nontyphoid Salmonella gastroenteritis, three cases; trichuriasis, two cases; amoebiasis, one case; adenovirus, one case; (iv) cases in which a firm diagnosis could not be established (three cases). The mean duration of hospital admission was 63 days. Sixteen cases required a change in diet, while nine cases required total parenteral nutrition. One death occurred.

    CONCLUSIONS: Chronic childhood diarrhoea in Malaysia had a variety of aetiologies. A specific diagnosis could be established in 90% of cases. Making a diagnosis was important because this led to appropriate therapy and a good outcome in 96% of cases.

    Matched MeSH terms: Age of Onset
  9. Koh WH, Boey ML
    Ann Acad Med Singap, 1998 Jan;27(1):3-6.
    PMID: 9588266
    This paper presents the results of a clinical study of 150 patients in Singapore with ankylosing spondylitis (AS) and reviews recent developments locally with regards to the disease. The patients were predominantly males (ratio 7:1) and Chinese (n = 147). The onset of disease is usually in the early twenties and there was a mean delay of 6.3 years before diagnosis was made. Peripheral joint involvement is common but apart from uveitis (17%), extra-articular manifestations are rare. AS patients have abnormal lipid profiles and lower bone mineral density compared to healthy controls. HLA*B2704 is the predominant subtype in our Chinese patients whilst HLA*B2706 was found only in healthy controls. Intensive group physiotherapy is beneficial for patients with spondyloarthropathy.
    Matched MeSH terms: Age of Onset
  10. Prando C, Samarina A, Bustamante J, Boisson-Dupuis S, Cobat A, Picard C, et al.
    Medicine (Baltimore), 2013 Mar;92(2):109-122.
    PMID: 23429356 DOI: 10.1097/MD.0b013e31828a01f9
    Autosomal recessive interleukin (IL)-12 p40 (IL-12p40) deficiency is a rare genetic etiology of mendelian susceptibility to mycobacterial disease (MSMD). We report the genetic, immunologic, and clinical features of 49 patients from 30 kindreds originating from 5 countries (India, Iran, Pakistan, Saudi Arabia, and Tunisia). There are only 9 different mutant alleles of the IL12B gene: 2 small insertions, 3 small deletions, 2 splice site mutations, and 1 large deletion, each causing a frameshift and leading to a premature stop codon, and 1 nonsense mutation. Four of these 9 variants are recurrent, affecting 25 of the 30 reported kindreds, due to founder effects in specific countries. All patients are homozygous and display complete IL-12p40 deficiency. As a result, the patients lack detectable IL-12p70 and IL-12p40 and have low levels of interferon gamma (IFN-γ). The clinical features are characterized by childhood onset of bacille Calmette-Guérin (attenuated Mycobacterium bovis strain) (BCG) and Salmonella infections, with recurrences of salmonellosis (36.4%) more common than recurrences of mycobacterial disease (25%). BCG vaccination led to BCG disease in 40 of the 41 patients vaccinated (97.5%). Multiple mycobacterial infections were rare, observed in only 3 patients, whereas the association of salmonellosis and mycobacteriosis was observed in 9 patients. A few other infections were diagnosed, including chronic mucocutaneous candidiasis (n = 3), nocardiosis (n = 2), and klebsiellosis (n = 1). IL-12p40 deficiency has a high but incomplete clinical penetrance, with 33.3% of genetically affected relatives of index cases showing no symptoms. However, the prognosis is poor, with mortality rates of up to 28.6%. Overall, the clinical phenotype of IL-12p40 deficiency closely resembles that of interleukin 12 receptor β1 (IL-12Rβ1) deficiency. In conclusion, IL-12p40 deficiency is more common than initially thought and should be considered worldwide in patients with MSMD and other intramacrophagic infectious diseases, salmonellosis in particular.
    Matched MeSH terms: Age of Onset
  11. Koh WH, Seah A, Chai P
    Ann Acad Med Singap, 1998 Jan;27(1):7-10.
    PMID: 9588267
    The aim of this retrospective study was to characterise the clinical presentation and disease associations of Oriental patients with gout seen in our hospital over a six-month period. One hundred patients comprising of 77 males and 23 females [89% Chinese, 7% Malays, 2% Indians and 2% others; mean age was 50.9 years (range 18 to 82 years), mean age at onset of disease was 43.7 years (range 16 to 78 years)] were studied. The disease was familial in 18% and 44% of patients had a history of alcohol ingestion. Co-morbid conditions included hypertension (36%), hyperlipidaemia (25%), renal failure (17%), ischaemic heart disease (13%), diabetes mellitus (4%), systemic lupus erythematosus (3%), psoriasis (2%) and ankylosing spondylitis (1%). The majority of patients (68%) had at least one associated disease. At the onset of disease, the joints commonly involved were the ankles (39%) and knees (27%) whilst the first metatarsophalangeal (MTP) joint was affected in only 26% of cases. Polyarticular onset was uncommon (n = 6). The precipitating factors reported by the patients included food (n = 23), alcohol (n = 12), drugs (n = 4), trauma (n = 3) and surgery (n = 2). Eleven patients had a history of renal calculi and 15% had tophaceous gout. Majority of patients (71%) had been treated with urate-lowering drugs (allopurinol). We concluded that gout in Singapore predominantly affects middle-aged men who often have an accompanying illness.
    Matched MeSH terms: Age of Onset
  12. Ngeow WC, Zain RB, Yeo JF, Chai WL
    J Oral Sci, 2000 Mar;42(1):9-14.
    PMID: 10808269
    This was a retrospective study of odontogenic keratocysts in people from the Singapore-Malaysian region. The purpose of this study was to present the clinicopathologic features of odontogenic keratocysts in the Oriental population and to compare these data with those from other reported studies. Biopsy records from 1981 to 1992 of 61 cases of odontogenic keratocysts from patients in Malaysia and Singapore showed that 42.6% of patients were female and 57.4% of patients were male. Among patients with cysts, 75.4% were Chinese, 6.6% were Malays, 9.8% were Indians and 8.2% were other ethnic groups. The mean age of these patients was 26.98 +/- 15.38 years with a peak incidence occurring in the second to fourth decades. The location of the lesions was more often in the mandible (65.5%) than the maxilla (31.0%). There was a marked predilection for lesions to occur in the posterior mandible. Histologically, 90.2% of the cysts were lined with a para-keratinized stratified squamous epithelium while only 3.3% of the cysts were lined with orthokeratinized stratified squamous epithelium. Mixed para-keratinized and orthokeratinized epithelial linings were observed in 4 cases (6.5%). The cyst linings were mainly uninflamed (95.1%). Inflammation of the cyst wall was found in 42 cases (68.8%). Twelve (19.7%) cases contained keratin in the lumen. A satellite cyst was observed in only 6 cases (9.8%). In conclusion, most clinical and histological features seen in this study were similar to those found for Caucasians. The only clinical feature that was different was the peak age incidence, that ranged from the second to fourth decades, with an absence of a second peak. Odontogenic keratocysts presenting at the site of the dentigerous cyst were observed in 7 cases (11.5%).
    Matched MeSH terms: Age of Onset
  13. Ariffin H, Hainaut P, Puzio-Kuter A, Choong SS, Chan AS, Tolkunov D, et al.
    Proc Natl Acad Sci U S A, 2014 Oct 28;111(43):15497-501.
    PMID: 25313051 DOI: 10.1073/pnas.1417322111
    The Li-Fraumeni syndrome (LFS) and its variant form (LFL) is a familial predisposition to multiple forms of childhood, adolescent, and adult cancers associated with germ-line mutation in the TP53 tumor suppressor gene. Individual disparities in tumor patterns are compounded by acceleration of cancer onset with successive generations. It has been suggested that this apparent anticipation pattern may result from germ-line genomic instability in TP53 mutation carriers, causing increased DNA copy-number variations (CNVs) with successive generations. To address the genetic basis of phenotypic disparities of LFS/LFL, we performed whole-genome sequencing (WGS) of 13 subjects from two generations of an LFS kindred. Neither de novo CNV nor significant difference in total CNV was detected in relation with successive generations or with age at cancer onset. These observations were consistent with an experimental mouse model system showing that trp53 deficiency in the germ line of father or mother did not increase CNV occurrence in the offspring. On the other hand, individual records on 1,771 TP53 mutation carriers from 294 pedigrees were compiled to assess genetic anticipation patterns (International Agency for Research on Cancer TP53 database). No strictly defined anticipation pattern was observed. Rather, in multigeneration families, cancer onset was delayed in older compared with recent generations. These observations support an alternative model for apparent anticipation in which rare variants from noncarrier parents may attenuate constitutive resistance to tumorigenesis in the offspring of TP53 mutation carriers with late cancer onset.
    Matched MeSH terms: Age of Onset
  14. Lee WS, Kaur P, Boey CC, Chan KC
    J Paediatr Child Health, 1998 Dec;34(6):568-70.
    PMID: 9928652
    OBJECTIVE: To describe the clinical features, management and outcome of children with cyclic vomiting syndrome (CVS) from South-East Asia.

    METHODOLOGY: Retrospective review of all children who fulfilled the diagnostic criteria of CVS and who were seen at Department of Paediatrics, University of Malaya Medical Centre, Kuala Lumpur and Paediatric Unit, Penang Hospital, Penang, Malaysia from 1987 to 1997.

    RESULTS: Eight children with CVS were seen at the two units during the study period, five girls and three boys. All had cyclical, self-limited episodes of nausea and vomiting with symptom-free intervals. The mean age of onset was 5.9 years. The clinical features were similar to other series described in the literature. Only two of the eight children were described as 'perfectionist'. Two children identified stress as precipitating factors. Therapy to reduce the number of emeses during acute attacks and to prevent subsequent attacks had been ineffective.

    CONCLUSION: There are similarities and differences in CVS from South-East Asian children as compared to those described in the literature.

    Matched MeSH terms: Age of Onset
  15. Loo CH, Tan WC, Tang JJ, Khor YH, Manikam MT, Low DE, et al.
    Int J Dermatol, 2018 Dec;57(12):1454-1463.
    PMID: 30182482 DOI: 10.1111/ijd.14210
    BACKGROUND: Hidradenitis suppurativa (HS) is a chronic, recurrent, inflammatory disorder of follicular occlusion, resulting in abscesses with tunnel formation and severe scarring. Our objectives were to identify the clinical patterns and the prevalence of metabolic syndrome (MetS) among our HS patients and to determine the role of ultrasonography in the clinical assessment of HS.

    METHODS: This was a cross-sectional study carried out from September 2016 to August 2017 at three tertiary hospitals in Northern Peninsular Malaysia.

    RESULTS: A total of 62 patients were recruited, 83.9% of whom were male. The mean age was 29.2 with the median age of onset at 18 years old. The median duration of delay in diagnosis was 3 years. A quarter of them had positive family history. Nearly three-quarters were overweight and obese. About 12/62 (19.4%) had MetS, and it was comparable to healthy controls (15/62, 24.2%). HS patients had a significant higher risk of low-high-density lipoprotein (HDL) and obesity. Based on Hurley staging, 15/62 (24.2%) were in stage I, 38/62 (61.3%) and 9/62 (14.5%) in stages II and III, respectively. However, sonographic scoring showed 50% had severe stage of disease, and 56.9% of the patients had subclinical lesions. There was only a fair agreement between ultrasonography and Hurley staging of disease severity (k = 0.25; P = 0.004).

    CONCLUSION: There was a male preponderance among HS patients in Northern Peninsular Malaysia with early age of onset and more severe disease. Only one-fifth had MetS, but they had significantly higher risks of obesity and low HDL. Ultrasonography examination was useful to detect subclinical lesions and providing a better understanding on disease severity.

    Matched MeSH terms: Age of Onset
  16. Hamid S, Yang YH, Peng KN, Ismail SM, Zain RB, Lim KP, et al.
    Oral Oncol, 2009 Jun;45(6):496-500.
    PMID: 18804411 DOI: 10.1016/j.oraloncology.2008.06.003
    The MDM2 SNP309 has been associated with increased expression of the protein which could suppress p53 function, and has been shown to modulate risk to cancer. We have previously shown that overexpression of MDM2 is a common event in oral cancers. In the present study, we determined the association between the MDM2 SNP309 polymorphism and oral cancer in 207 oral cancer patients and 116 normal subjects. We genotyped the MDM2 SNP309 by PCR-RFLP. Logistic regression was adapted to calculate odds ratios for MDM2 SNP309 polymorphism from univariate and multivariable adjusted models. Our results suggest that MDM2 SNP309 does not confer increased risk to oral cancer (OR=1.55, 95% CI=0.77-3.11). However, the GG/TG genotype was associated with later disease onset in women above 55 years of age. Collectively, our data suggests that MDM2 SNP309 may modulate the risk to oral cancer and is a modifier of the age at oral cancer onset in women above the age of 55 years.
    Matched MeSH terms: Age of Onset
  17. Choon SE, Lai NM, Mohammad NA, Nanu NM, Tey KE, Chew SF
    Int J Dermatol, 2014 Jun;53(6):676-84.
    PMID: 23967807 DOI: 10.1111/ijd.12070
    BACKGROUND: Generalized pustular psoriasis (GPP) is a severe but rare variant of psoriasis. Our objective is to review the clinical profile, comorbidities, and outcome of patients with GPP.
    MATERIALS AND METHODS: A retrospective note review of all patients with adult-onset GPP.
    RESULTS: A total of 102 patients with adult-onset GPP were diagnosed between 1989 and November 2011, with a female to male ratio of 2 : 1. The mean age at onset of GPP was 40.9 years (range: 21-81 years). Acute GPP was the most common variant seen (95 cases), followed by four localized variants of GPP and three with annular pustular psoriasis. Fever and painful skin were present in 89% of patients, arthritis in 34.7%, and leukocytosis in 78.4%. Common triggers were systemic steroids (45 cases), pregnancy (17 cases), and upper respiratory tract infections (16 cases). A positive family history of psoriasis and GPP was present in 29% and 11%, respectively. Comorbidities included obesity (42.9%), hypertension (25.7%), hyperlipidemia (25.7%), and diabetes mellitus (23.7%). The mean duration of admission and pustular flare for acute GPP was 10.3 days (range: 3-44 days) and 16 days (range: 7-60 days), respectively. Fifty-four patients responded to systemic retinoid, 21 to methotrexate, eight to cyclosporine, and one to adalimumab, but recurrences were common.
    CONCLUSIONS: Our study confirms the poor response of GPP to currently available anti-psoriatic agents, with frequent flare-ups. There is a need for a more effective targeted therapy for this condition.
    Matched MeSH terms: Age of Onset
  18. Sim X, Ali RA, Wedren S, Goh DL, Tan CS, Reilly M, et al.
    BMC Cancer, 2006;6:261.
    PMID: 17078893
    From 1968 to 2002, Singapore experienced an almost three-fold increase in breast cancer incidence. This increase appeared to be different across the three main ethnic groups: Chinese, Malays and Indians. This paper used age-period-cohort (APC) modelling, to determine the effects of age at diagnosis, calendar period, and birth cohort on breast cancer incidence for each ethnic group.
    Matched MeSH terms: Age of Onset
  19. Chalhoub NE, Wenderfer SE, Levy DM, Rouster-Stevens K, Aggarwal A, Savani SI, et al.
    Arthritis Rheumatol, 2022 Feb;74(2):263-273.
    PMID: 34279063 DOI: 10.1002/art.41930
    OBJECTIVE: To develop a standardized steroid dosing regimen (SSR) for physicians treating childhood-onset systemic lupus erythematosus (SLE) complicated by lupus nephritis (LN), using consensus formation methodology.

    METHODS: Parameters influencing corticosteroid (CS) dosing were identified (step 1). Data from children with proliferative LN were used to generate patient profiles (step 2). Physicians rated changes in renal and extrarenal childhood-onset SLE activity between 2 consecutive visits and proposed CS dosing (step 3). The SSR was developed using patient profile ratings (step 4), with refinements achieved in a physician focus group (step 5). A second type of patient profile describing the course of childhood-onset SLE for ≥4 months since kidney biopsy was rated to validate the SSR-recommended oral and intravenous (IV) CS dosages (step 6). Patient profile adjudication was based on majority ratings for both renal and extrarenal disease courses, and consensus level was set at 80%.

    RESULTS: Degree of proteinuria, estimated glomerular filtration rate, changes in renal and extrarenal disease activity, and time since kidney biopsy influenced CS dosing (steps 1 and 2). Considering these parameters in 5,056 patient profile ratings from 103 raters, and renal and extrarenal course definitions, CS dosing rules of the SSR were developed (steps 3-5). Validation of the SSR for up to 6 months post-kidney biopsy was achieved with 1,838 patient profile ratings from 60 raters who achieved consensus for oral and IV CS dosage in accordance with the SSR (step 6).

    CONCLUSION: The SSR represents an international consensus on CS dosing for use in patients with childhood-onset SLE and proliferative LN. The SSR is anticipated to be used for clinical care and to standardize CS dosage during clinical trials.

    Matched MeSH terms: Age of Onset
  20. Koh ET, Seow A, Leong KH, Chng HH
    Lupus, 1997;6(1):27-31.
    PMID: 9116715 DOI: 10.1177/096120339700600104
    We analysed the causes of 67 deaths, over a 4 y period, in our oriental population with systemic lupus erythematosus (SLE). The median disease duration was 48 +/- 60.5 months (range 1-250 months). The mean age at diagnosis and death were 30 and 35.1 y respectively. SLE alone accounted for death in 30 patients (44.8%), infection in 27 (40.3%), pulmonary embolism in 5 (7.5%), malignancy in 4 (5.9%) and rheumatic heart disease in 1 (1.5%). The major organ involvement in those with active disease at death were SLE related thrombocytopenia (n = 23/44, 52.3%), nephritis (n = 21/44), 47.7%), cerebral lupus (n = 16/44, 36.4%), and pulmonary haemorrhage (n = 12/44, 27.3%). As in other series, SLE and infection were the principal causes of death in our population. During this 4 y period, there was no late death due to atherosclerosis.
    Study site: Tan Tock Seng Hospital (TTSH), Singapore
    Matched MeSH terms: Age of Onset
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