Displaying publications 221 - 240 of 1062 in total

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  1. Hashim Z, Woodhouse L, King JC
    Int J Food Sci Nutr, 1996 Sep;47(5):383-90.
    PMID: 8889623
    Circulating zinc concentrations were measured in 73 healthy adult males and females 19-52 years of age who were volunteers for eight different metabolic studies at the University of California, Berkeley. The interindividual variation in the eight studies varied from 5 to 20%; the global coefficient of variation for all studies was 12 +/- 7% (mean +/- SD). The analysis of a reference plasma sample on six different days showed a mean coefficient of variation of 3.8%. Thus, only a small portion of the intraindividual variation is due to day-to-day analytical differences. There was no relationship between circulating zinc concentrations and age, height, or body mass index. Nor were there any significant differences due to gender. Information regarding dietary zinc and protein intakes was available from three-day weighed food intake records from 44 of the subjects. Plasma zinc concentrations were unrelated to the intake of either zinc or protein in those subjects. The results of this study show that the impact of age, gender, body size and dietary zinc or protein on circulating zinc concentrations are too small to be detected in the presence of the analytical and endogenous factors that influence plasma/serum zinc concentrations. Also, within a population of healthy adults, circulating zinc concentrations may vary by as much as 15%.
    Matched MeSH terms: Age Factors
  2. Mahadeva S, Goh KL
    J Gastroenterol Hepatol, 2003 Apr;18(4):359-62.
    PMID: 12653882
    Dyspepsia is a common problem in the Asia-Pacific region, with a prevalence rate ranging from 10-20%. It constitutes 2-5% of consultations with primary-care physicians and forms a major part of the gastroenterologists' workload. Although upper gastrointestinal endoscopy (UGIE) is the investigation of choice, no serious disease is present in the majority of patients and various other ways have been suggested, mainly in the West, to reduce the demand on the finite resources of UGIE services. The alternative methods to UGIE have been based on non-invasive detection of Helicobacter pylori in patients with dyspepsia, as the organism has been shown to be associated with most peptic ulcers and even gastric cancer. A positive H. pylori test in a patient with dyspepsia may not necessarily indicate serious disease, but H. pylori eradication eliminates the propensity for developing peptic ulcers and perhaps even cancer (not proven). In high-risk populations, non-invasive screening for H. pylori can even be considered a 'cancer test', as it can help target investigations in a selected group of patients.
    Matched MeSH terms: Age Factors
  3. Ho T, Yoong T
    Singapore Med J, 1996 Feb;37(1):61-5.
    PMID: 8783916
    The study was conducted to determine the pick-up rate of abnormal cervical smears and the prevalence rate of cervical cancer in women aged 60 years and above and the demographic characteristics of the women screened. The pick-up rate of abnormal cervical smears was 1.65%. The prevalence rate for cervical intraepithelial neoplasia and frank carcinoma was 6.4 and 5.0 per thousand women screened respectively. The study group comprised 89.7% Chinese, 4.7% Malays, 3.6% Indians and 2.0% Others. The pick-up rate of abnormal smears was 1.9% in the Chinese and 1.3% in the Indians. There were no abnormal smears in the Malays and Others. The results demonstrate the importance of a routine cervical cancer screening programme among elderly women aged 60 years and above in Singapore.
    Matched MeSH terms: Age Factors
  4. Seow A, Duffy SW, McGee MA, Lee J, Lee HP
    Int J Epidemiol, 1996 Feb;25(1):40-5.
    PMID: 8666502
    BACKGROUND: Breast cancer is the most commonly occurring cancer among women in Singapore, a country which has experienced significant changes in lifestyle over the past three decades. The increase in incidence of the disease is a matter of some concern.

    METHODS: Data from the population-based Singapore Cancer Registry for 1968-1992 were used to determine time trends, inter-ethnic differences and the contributions of age, period and cohort effects to the incidence of the disease.

    RESULTS: Our results revealed an average annual increase of 3.6% over the 25-year period for all women, form 20.2 per 100,000 women in the period 1968-1972 to 38.8 per 100,000 in 1988-1992. There was a statistically significant difference between the three major ethnic groups, the rate of increase being highest in Malays (4.4%) and lowest in Indians (1.4%). The overall increase was attributable to a strong cohort effect that remained significant when adjusted for time period for Chinese women and for all ethnic groups combined. The risk was observed to increase in successive birth cohorts from the 1890s to 1960s.

    CONCLUSIONS: Our results suggest that breast cancer incidence rates are likely to continue to increase more sharply in the future as women born after the mid-20th century reach the high-risk age groups. They also suggest the pattern by which important aetiological factors for the disease in our population have exerted their effects, and provide support for the role of demographic and lifestyle changes as possible risk factors.

    Matched MeSH terms: Age Factors
  5. Dharap AS, Reddy SC
    Med J Malaysia, 1995 Dec;50(4):377-81.
    PMID: 8668060
    The upper eyelid crease height pretarsal skin and eyebrow height were studied in 305 Malay subjects (146 males and 159 females) varying in age from 2-80 years, who were randomly selected from the residents of Kota Bharu, Kelantan. In females, from the age of 11 years the mean pretarsal skin height increased progressively with age. In males, however, it decreased with age up to 60 years. In both sexes, subjects more than 60 years old showed highest values for pretarsal skin height. The mean eyelid crease height increased progressively with age from 11 years onwards in males but not in females. The mean eyebrow height increased with age in females but not in males. Eyebrow and eyelid measurements seem to show a definite racial variation. Besides establishing normal values for eyelid and eyebrow measurements in Malays, our findings indicate that age and sex should be taken into consideration to achieve satisfactory results in cosmetic eyelid surgery in Malays.
    Matched MeSH terms: Age Factors
  6. Gan GG, Teh A, Goh KY, Chong HT, Pang KW
    Int J Hematol, 2003 Jul;78(1):84-6.
    PMID: 12894858
    Warfarin is a drug commonly used in the prevention of thromboembolic events. There have been reports suggesting that racial background may influence warfarin dose requirements. Malaysia is a multiracial country in which there are 3 major races, Malay, Chinese, and Indian. We examined 100 patients from our hospital on stable maintenance doses of warfarin, with international normalized ratio (INR) of 2.0 to 3.5. We found that the mean warfarin dose for Indian patients (n = 19) was 6.9 mg, for Chinese patients (n = 55) was 3.6 mg, and for Malay patients (n = 26) was 3.2 mg. The results showed that the Indian patients required a statistically significantly higher warfarin dose than did patients of the other 2 races (P < .0005). Age was also found to affect the daily warfarin maintenance dose.
    Matched MeSH terms: Age Factors
  7. Rampal L, Narasimman S
    Med J Malaysia, 2003 Mar;58(1):54-61.
    PMID: 14556326 MyJurnal
    Objectives: i) To determine the prevalence of smoking among the community aged 15 and above in Kg. Jenderam Hilir in Sepang District, Selangor state. ii) To determine the relationship between smoking and age, sex, household income and education. iii) To determine the parental and peer influence on smoking in Kg Jenderam Hilir.
    Materials and Methods: A study was conducted to Kg Jenderam Hilir, Sepang. All residents aged 15 years and above from all the 381 households of Kg Jenderam Hilir were included in this study. A standardized pre-tested structured questionnaire was used in this study.
    Results: Out of 894 respondents interviewed 69% were males compared to 3.9% of the females (overall 33.6%) reported to have smoked at least once in his/her lifetime. The difference was statistically significant. The mean duration of smoking was 17.7 years. The age at which smoking was first attempted ranged from 4 years to 51 years with a mean of 18.7 years. The mean initiation age for the males was significantly lower as compared to the mean initiation age for the females. The prevalence of current smokers was significantly higher amongst males (52.8%) as compared to the females (1.4%). The prevalence of smoking among current smokers increased with age (p<0.01). there was no significant difference in the prevalence of smoking by household income and educational level. The mean number of cigarettes smoked by current smokers per day was 14.9 cigarettes and ranged from 1 to 60 cigarettes. The mean number of cigarettes smoked by the males was significantly higher than the females (p<0.05). the mean duration of smoking among current smokers was 20 years. There was a significant difference in the level of addiction to smoking and the duration of smoking (p<0.05). sixty five percent of the current smokers reported to have tried to quit smoking while 26% of ever smokers had reported to quit smoking and remained non-smokers. The quit ratio was calculated to be 26.0%. the quit ratio was 52.6% among those with college or university education. There was a significant difference in the quit ratio by education level (p<0.01). There was no significant difference in smokers whose parents were smokers as compared to non-smokers whose parents were smokers. However, there was a significant association between smoking and peer influence (p<0.01).
    Matched MeSH terms: Age Factors
  8. Biddlecom AE, Domingo LJ
    J Cross Cult Gerontol, 1996 Mar;11(1):109-14.
    PMID: 12292274
    Matched MeSH terms: Age Factors
  9. Singh R, Singh HJ, Sirisinghe RG
    Singapore Med J, 1995 Apr;36(2):169-72.
    PMID: 7676261
    Aerobic capacity (VO2max) and lung capacities were measured in 66 healthy females ranging in age from 13 to 49 years. Forced vital capacity (FVC) and peak expiratory flow rate (PEFR) were measured using a dry spirometer and Wrights peak flow meter respectively. Cardiopulmonary parameters were obtained from a progressive ergocycle test to exhaustion. Mean FVC and PEFR obtained were 2.73 +/- 0.07 L and 412 +/- 8.5 L/min respectively. FVC correlated negatively with age in subjects from the 3rd to 5th decade of age (r = 0.38, p < 0.05). Mean VO2max was 43.2 +/- 0.9 ml/kg/min in the 2nd decade compared to 30.3 +/- 0.7 ml/kg/min in the fifth decade. Regression analysis revealed an age related decline in VO2max of 0.45 +/- 0.8 ml/kg/min/year, which was found to be somewhat higher compared to other studies.
    Matched MeSH terms: Age Factors
  10. 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 Factors
  11. Yaacob I, Mustafa M
    Singapore Med J, 1994 Oct;35(5):512-4.
    PMID: 7701374
    Fifty-eight patients were ventilated for acute respiratory failure complicating respiratory diseases between 1985 to 1990. There were 19 cases of chronic obstructive airway disease (COAD), 17 cases of asthma, 16 cases of pneumonia and 6 cases with other diagnoses. Overall, 40% of patients survived and were discharged from the ward. Patients with pneumonia had the lowest survival rate (25%) whilst the survival rates for asthma and COAD were 47% and 42% respectively. Increasing age had an inverse relationship to survival rate (r = 0.96, p < 0.05) but the duration of ventilation did not correlate with survival. Patients who were electively ventilated before respiratory arrest had a better chance of survival (57%) compared with only 18% survival rate in patients who were ventilated as an emergency (x2 = 4.47, p < 0.05). Patients who developed other organ failure had higher mortality (71%) than those who did not (22%; x2 = 2.14, p < 0.05). We conclude that patients younger than 50 years of age, who were electively ventilated and without other organ failure had a better immediate survival after assisted ventilation.
    Matched MeSH terms: Age Factors
  12. Noor Hassim I, Rampal KG
    Med J Malaysia, 1994 Mar;49(1):78-85.
    PMID: 8057996
    A cross sectional study to determine the prevalence of hearing loss and hearing impairment was conducted on 286 male subjects from a rural area. The sample was chosen by using a simple random sampling method. Prevalence of symptoms of tinnitus, ear disease, ear drum perforation and infection of external auditory meatus was 19.0 per cent, 6.7 per cent, 3.5 per cent and 0.4 per cent respectively. Air conduction audiometry tests showed the prevalences of hearing impairment of the left, right and both ears (aged 15-30 years) were 5.9%, 8.8% and 0% respectively. The prevalence of hearing loss increased with age. The higher frequencies (> 4KHz) appeared to be more affected than the lower frequencies.
    Matched MeSH terms: Age Factors
  13. Tsubouchi Y
    Tonan Ajia Kenkyu, 1993 Jun;31(1):3-17.
    PMID: 12157851
    The author describes changes in the size and characteristics of multiple-household compounds in Kelantan, Malaysia, during the period 1971-1991. It is found that "in Malay villages, multihouseholdcompounds were in earlier times...based on a bilateral residence rule in which one or more children, either male or female, would stay in the compound of their parents....A recent trend has been for more females to remain in the parental compound than males, reflecting the orientation toward independence among the males." (SUMMARY IN ENG)
    Matched MeSH terms: Age Factors
  14. Singh R, Singh HJ, Sirisinghe RG
    Med J Malaysia, 1993 Jun;48(2):175-84.
    PMID: 8350793
    Spirometry was performed on 1,999 subjects (1,385 males and 614 females) ranging in age from 13 to 69 years and comprising of all the main races in Malaysia. They were divided into 6 age groups. Mean forced vital capacity (FVC) in the males and females was 3.49 +/- 0.02 L and 2.51 +/- 0.02 L respectively. Both FVC and FEV1 correlated negatively with age. Regression analysis on data between the ages of 20 to 69 years revealed an age-related decline in FVC of about 30 ml per year of life in the males and 22 ml per year in the females. Multiple stepwise regression of the data for the prediction of an individual's FVC above the age of 20 years gave an equation for the males: FVC = 0.0407 (height)-0.0296 (age)-2.343 L and for the females: FVC = 0.031 (height)-0.022 (age)-1.64 L. Predicted FVC values derived from equations based on other populations were considerably higher than the observed mean in this study, re-emphasizing the need to be cautious when applying formulae derived from one population to another. Grossly erroneous conclusions may be reached unless predicted equations for lung-function tests for a given population group are derived from studies based upon the same population group.
    Matched MeSH terms: Age Factors
  15. Ismail Y, Azmi NN, Zurkurnain Y
    Med J Malaysia, 1993 Jun;48(2):171-4.
    PMID: 8350792
    We conducted a study to measure the peak expiratory flow rate (PEFR), forced vital capacity (FVC) and forced expiratory volume in 1 second (FEV1) in a group of normal Malay primary school children aged 7 to 12 years. PEFR was measured in 920 children (482 boys and 438 girls) while FVC and FEV1 were measured in 292 of them (168 boys and 124 girls). In agreement with previous studies, we found that PEFR was correlated with age and height of the subjects but FVC and FEV1 were correlated with height only. Prediction equations for all 3 lung function indices for Malay boys and girls were formulated. In comparison with the lung function values from Western and Chinese subjects, the lung function values in our subjects are lower.
    Matched MeSH terms: Age Factors
  16. Veerapen K, Mangat G, Watt I, Dieppe P
    Br J Rheumatol, 1993 Jul;32(7):541-5.
    PMID: 8339122
    Seventy consecutive patients with definite or classical RA attending a University Hospital Rheumatology Clinic in Malaysia, were compared with an age, sex, disease duration matched group of RA patients seen in a British University Hospital. There were no differences in measures of disease activity, overall functional status or serological status in the two groups. However significant differences were seen in both the articular and extra-articular manifestations of the disease in the two countries. British patients had more severe disease in the feet, and a higher prevalence of nodules, vasculitis and pulmonary fibrosis. The Malaysian population had fewer erosions, more frequent involvement of the wrists and cervical spine, and a much higher incidence of secondary sicca syndrome. Radiographic changes were generally milder in Malaysian patients. Possible reasons for these differences in the expression of RA in the two countries are discussed.
    Matched MeSH terms: Age Factors
  17. Khor GL, Hsu-Hage BH, Sundram K, Wahlqvist ML
    Med J Malaysia, 1997 Dec;52(4):367-76.
    PMID: 10968113
    Several risk factors for cardiovascular disease amongst a sample of urban Chinese women were investigated. These factors included body mass index (BMI), waist hip ratio, total blood cholesterol (TC), HDL-cholesterol and Lp(a) levels, blood pressure, cigarette smoking, family history of chronic disease, dietary habits and frequency of selected food intake. The subjects were found to have coronary risks with respect to BMI and TC level, both of which increased with age of the women. Hypertension, HDL-cholesterol and Lp(a) levels appeared not to pose as risk factors amongst these subjects. Dietary habits and intake showed significant correlations with subjects' BMI status. Health promotion is called for towards reducing the modifiable coronary risk factors.
    Matched MeSH terms: Age Factors
  18. Yong ASM, Goh AS, Rahman M, Menon J, Purushothaman V
    Med J Malaysia, 1998 Mar;53(1):59-62.
    PMID: 10968139
    Aplastic anaemia is a rare disease which is more prevalent in the Far East. In Malaysia, it appears to be unusually common in the state of Sabah. A retrospective analysis of all cases of aplastic anaemia diagnosed between January 1993 and March 1996 was undertaken. The criteria of the International Aplastic Anaemia and Agranulocytosis Study (IAAAS) was used. In this 39 month period, 31 cases were confirmed by marrow trephine biopsy to be aplastic anaemia. The male-to-female ratio was 3.4. Median age of diagnosis was 23 years. There were 24 patients (77%) who were from the Kadazan-Dusun ethnic group, which forms 18% of the population of Sabah. The incidence of aplastic anaemia in Sabah appears to be higher than that reported elsewhere in the Far East, at 4.8 per million population per year. Peak incidence is in the elderly group at 8.6 per million followed by a second peak in young people aged 15 to 24 (7.9 per million). The aplastic anaemia to total acute leukaemia ratio is 0.37. The marked male preponderance and apparent susceptibility of the Kadazan-Dusun people are also notable. A further prospective study to address the true incidence of aplastic anaemia and possible aetiologic factors accounting for these observations is necessary.
    Matched MeSH terms: Age Factors
  19. Biswal BM, Rath GK, Joshi RC, Mohanti BK, Ganesh T, Singh R
    Med J Malaysia, 1998 Mar;53(1):30-6.
    PMID: 10968134
    Radical radiotherapy is considered as the treatment of choice in locally advanced cancer cervix. In late stages radiotherapy produce optimum palliation and to some extent cure. Three hundred cases of cancer cervix (stage I-IV) comprising stage-I (7), stage-II (144), stage-III (145) and stage IV (4) were evaluated and treated with radiotherapy between April 1990 to July 1994. FIGO stage IB, IIA and IIB (early), were treated with predominant intracavitary radiotherapy (34 Gy X 2 fractions; within one week) followed by external pelvic radiotherapy to a dose of 36 Gy in 18 fractions; treating 200 cGy per fraction, 5 days a week. The late stage (stage-IIB, IIIA and IIIB, IVA) of disease were managed with initial external radiotherapy to a dose of 50 Gy, followed by a single intracavitary dose of 30 Gy to point-A. The median follow up was 33 months (range 12-72 months). The tumor volume less than 100 cc were associated with better survival than volume more than 100 cc (p < 0.05). The five year actuarial survival was 83%, 68% and 58% respectively in FIGO stage I-III disease. There were 0.33% and 2.6% late grade-III bladder and rectal complications. Our experience shows effectiveness of radiotherapy in the management of locally advanced cancer of the cervix.
    Matched MeSH terms: Age Factors
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