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Birth order of volunteers: cross-cultural data

Wagner NN

J Soc Psychol, 1968 Feb;74(1):133-4.
PMID: 5640245
Matched MeSH terms: Birth Order*
On estimating fertility using first and second order births

Pathak KB, Murthy PK

Janasamkhya, 1990 Jun;8(1):73-9.
PMID: 12285535

"An attempt has been made to present two regression equations for estimating total fertility rate from the birth order data. While one of the equations has been derived from the longitudinal data of Malaysia another has been obtained from cross sectional data on Mother's total fertility rate...and births of orders one and two. These equations are used to estimate the [total fertility rate] for the districts of [Uttar Pradesh, India,] which are quite close to the estimates obtained by using other methods."

Matched MeSH terms: Birth Order*
A transcultural view of sibling rank and mental disorder

Hartog J

Acta Psychiatr Scand, 1974;50(1):33-49.
PMID: 4826849
Matched MeSH terms: Birth Order*
Birth order and hierarchical versus innovative role requirements

Exner JE, Sutton-Smith B

J Pers, 1970 Dec;38(4):581-7.
PMID: 5483866
Matched MeSH terms: Birth Order*
Sibling rank of Malay psychiatric patients and juvenile delinquents

Hartog J

Southeast Asian J Trop Med Public Health, 1972 Mar;3(1):124-37.
PMID: 5028858
Matched MeSH terms: Birth Order*
Fulltext Mode of delivery, order of birth, parental age gap and autism spectrum disorder among Malaysian children: A case-control study

Andoy Galvan JA, Ramalingam PN, Patil SS, Bin Shobri MAS, Chinna K, Sahrir MS, et al.

Heliyon, 2020 Oct;6(10):e05068.
PMID: 33083595 DOI: 10.1016/j.heliyon.2020.e05068

Rising prevalence of autism spectrum disorders (ASD) in the last decades has led research to focus on the diagnosis and identification of factors associated with ASD. This paper sought for possible factors that put children at risk for ASD. In this study, we investigated the association between ASD and parental ages, parental age gaps, birth order and birth delivery method in Malaysian population. In this school-based case control study, 465 children with ASD 464 controls participated. Questionnaires were distributed to the parents of the selected children through the respective principals. Among the tested variables, Caesarean section (OR = 1.63, 95% CI 1.20, 2.20), earlier order of birth in the family (OR = 0.68, 95% CI 0.59, 0.77) and increasing gap in parental ages (OR = 1.04, 95% CI 1.001, 1.07) were significantly associated with ASD. This study concludes that Caesarean section, earlier order of birth in the family and increasing gap in parental age are independent risk factors for developing autism among Malaysian children.

Matched MeSH terms: Birth Order
Determinants of birth-interval length in the Philippines, Malaysia, and Indonesia: a hazard-model analysis

Trussell J, Martin LG, Feldman R, Palmore JA, Concepcion M, Abu Bakar D

Demography, 1985 May;22(2):145-68.
PMID: 3996687
Matched MeSH terms: Birth Order
Fulltext The association of birth order and sociodemographic factors with caries experience among adolescents in Tumpat

Wan Salina, W.S., Nizam, A., Naing, L.

Archives of Orofacial Sciences, 2007;2(1):45-50.
MyJurnal

Sociodemographic factors have received considerable attention in the literature with regards its relationship with caries. However, the related information among children ages 12-17 is fairly limited. Birth order has been consistently found to be associated with diseases hypothesized to have an infectious aetiology but only few studies have examined its relationship with dental caries. The aims of this study were to determine the association of birth order and the sociodemographic background of subjects with caries and high caries experience among 16-year-old schoolchildren in Tumpat district, Kelantan. This was a case-control study. A total of 1087 16-year-old schoolchildren were examined intraorally for their caries status. They were categorized into three groups namely caries free (DMFS=0) mild caries (DMFS= 1-7) and high caries (DMFS ≥8) group based on DMFS score. Cases were the caries group and the controls were the caries free group. In each group, 163 subjects were selected by using simple random sampling. A questionnaire was used to obtain personal information of the subjects, birthweight and sociodemographic background. Analysis involved was ordinal logistic regression. The factor that was found to have association with caries and high caries experience determined using multiple ordinal logistic regression analysis was educational level of parents (OR=1.55, 95% CI: 1.06; 2.28). This study showed that birth order was not a significant factor associated with caries experience. Among the sociodemographic factors, only parent’s educational level was found to be associated with caries and high caries experience.

Matched MeSH terms: Birth Order
Consent for lumbar puncture -factors that influence the decision

Malik, A.S.

Malaysian Journal of Paediatrics and Child Health, 2000;12(1):35-41.
MyJurnal

Lumbar puncture (LP) is an important procedure both for diagnostic and therapeutic purposes. In Kelantan, Malaysia, on many occasions consent for this procedure is not granted by patients or guardians. The aim of this study was to find out the factors that influence the decision to grant or refuse the consent for LP. This was a cross-sectional study in which 86 parents (who agreed or refused to give consent for LP on their child) were interviewed by using a standard questionnaire. A scoring system was used to assess their knowledge about the purpose and technique of the procedure. Consent for LP was granted in 23 and refused in 27 children. The refusal rate was significantly higher when family members other than parents made the decision. The factors which did not play a statistically significant role in decision-making included: age of the child and parents; gender of the patient; number of children in the family; patient's birth order among the siblings; place of residence; monthly income of the family; parents' level of education; and number of days after admission when LP was requested. The factors that positively influenced the decision to give consent included knowledge about the purpose of LP and underlying disease. In order to receive positive consent for LP it is concluded that the parents/guardians and other family members who may influence the decision-making should be explained the role of LP in (1) making diagnosis and (2) choosing right antibiotics for treatment. They should also be informed about the side-effects of antibiotics, which may be used unnecessarily in unconfirmed cases of central nervous system infections.

Matched MeSH terms: Birth Order
Emotional regulation as a mediator between the filial behaviour of the oldest son and subjective well-being of older parents in Pakistan

Hassan SMU, Hamid TA, Haron SA, Ibrahim R

Psychogeriatrics, 2020 Jan;20(1):59-69.
PMID: 31016831 DOI: 10.1111/psyg.12458

BACKGROUND: The link between the filial behaviour of an adult child and older parents' well-being is well entrenched, and theoretical evidence has indicated that it may be mediated by emotional regulation. Therefore, the current study aimed to examine whether emotional regulation (i.e. cognitive reappraisal and suppression) mediates the association between filial behaviour of the oldest son (i.e. the filial behaviour of respect and filial behaviour of daily maintenance) and subjective well-being in older parents.
METHODS: This correlational study recruited 400 community-dwelling older parents in Rawalpindi Pakistan through a multistage cluster random sampling technique. Subjective well-being was measured by Concise Measure of Subjective Well-being; filial behaviour was examined through receipt of 12 domains; emotional regulation was assessed by using the Emotional Regulation Questionnaire. The structural equation modelling was employed to test the mediation effects.
RESULTS: Cognitive reappraisal was found to partially mediate the relationship between filial behaviour of respect and subjective well-being (β in direct model = 0.661, P

Matched MeSH terms: Birth Order*
The effects of life cycle and family formation variables on pregnancy outcome

Arshat H, Tan Boon Ann, Tey Nai Peng

Malays J Reprod Health, 1985 Dec;3(2):115-25.
PMID: 12314738
Matched MeSH terms: Birth Order*
Fulltext Nutrition and educational achievement of urban primary schoolchildren in Malaysia

Shariff ZM, Bond JT, Johnson NE

Asia Pac J Clin Nutr, 2000 Dec;9(4):264-73.
PMID: 24394502

The relationship between nutrition, health and educational achievement of school-age population in less developed countries has been of interest to many researchers due to the frequent observation that many children did not complete primary school and those who completed, did not do as well as children in the developed countries. Nevertheless, nutritional and health status by itself is not the only variable affecting educational achievement, since biological, psychological, socioeconomic and cultural factors could directly or indirectly affect both nutrition, health status and educational achievement. The mechanism by which health and nutrition influence educational achievement is not well established, but poor health and malnutrition in early childhood may affect cognitive abilities, necessary for learning process and consequently educational achievement. A study was conducted in Kuala Lumpur, Malaysia, to investigate the relationship between nutritional status and educational achievement among primary schoolchildren from low income households (n = 399). A high percentage of them were mild-significantly underweight (52%), stunted (47%) and wasted (36%) and increasingly overweight (6%). In general, more boys than girls were found to experience some form of malnutrition. While weight-for-height did not differ significantly according to family, child and school factors, weight-for-age and height-for-age differed significantly by gender. Also, height-for-age was significantly related to household income. This indicates that stunting may be a consequence of prolonged socioeconomic deprivation. Educational achievement was measured based on test scores for Malay language (ML), English language (EL) and mathematics (MT). While a majority of the schoolchildren obtained optimum scores (>75) for ML and MT, the majority of them had insufficient scores (<50) for EL. Children's total score (TS) for the three subjects was significantly associated with household socioeconomic status, gender, birth order and heightfor- age. Even after controlling for household socioeconomic status, significant association between TS and height-for-age persisted. In this sample of schoolchildren, household income, gender, birth order and height-forage were significant predictors of TS. The finding that height-for-age is related to educational achievement agrees with other studies, which have reported that height-for-age, compared to weight-for-height or weight-forage is linked to educational achievement. Height-for-age reflects the accumulation of nutritional deprivation throughout the years, which may consequently affect the cognitive development of the children.

Matched MeSH terms: Birth Order
Economic and cultural influences on the decision to leave home in Peninsular Malaysia

Johnson RW, DaVanzo J

Demography, 1998 Feb;35(1):97-114.
PMID: 9512913

Although the departure of children from the parental home is an important life-cycle event, few studies have investigated nest-leaving in developing countries. Using retrospective data from the Second Malaysian Family Life Survey, we estimate hazard models of nest-leaving in Peninsular Malaysia. We find that the departure of children, especially sons, responds to economic incentives, including housing costs, family businesses, education, and economic growth, and that ethnic differences in nest-leaving are important. We also find that the median age of departure from home has declined sharply over the past 40 years, a period of rapid social and economic change in Malaysia.

Matched MeSH terms: Birth Order
Low birthweight of live singletons in Singapore, 1967-1974

Hughes K, Tan NR, Lun KC

Int J Epidemiol, 1984 Dec;13(4):465-71.
PMID: 6519886

A random sample of 23 591 single livebirths was drawn from the Singapore Registry for 1967-1974, and information extracted from the birth certificates. The proportion of low birthweight infants (2500 g or less) fell markedly from 9.1% in 1967 to 5.7% in 1974, which has not been the finding in other studies. Variation in the proportions of low birthweight infants by sex, maternal age, parity, and social class, are broadly in agreement with other studies. Indians were found to have significantly smaller babies (mean weight of 3020 g) with a higher proportion of low birthweight ones (11.5%) than the Malays (3080 g and 8.1%) and the Chinese (3130 g and 6.1%). This is despite similar distributions of gestational age, and for term babies the differences in low birthweight proportions are highly significant with Chinese 5.0%, Malays 6.5%, and Indians 9.8%. The reasons for this are discussed with the implication that lower birthweights in Indians are to some extent of ethnic/genetic origin.

Matched MeSH terms: Birth Order
Ethnic group differences in low birthweight of live singletons in Singapore, 1981-3

Hughes K, Tan NR, Lun KC

J Epidemiol Community Health, 1986 Sep;40(3):262-6.
PMID: 3772285

All singleton live births occurring in Singapore in the three years 1981-3 were computed, and birthweight was examined in the different ethnic groups (Chinese, Malay, and Indian). Overall the proportions of babies of very low birthweight (less than 1500 g) and low birthweight (less than 2500 g) were: Chinese 0.3% and 6.1%, Malays 0.4% and 8.5%, and Indians 0.5% and 10.0%. The important finding was that in all gestational periods and virtually all maternal age and live birth order groups Indians had the highest proportion of very low and low birthweight babies. However for prematurity Indians at 6.7% had a higher rate than Chinese (5.1%) but lower than Malays (9.9%). Likewise for neonatal mortality Indians at 8.7 per 1000 live births were between Chinese (7.1) and Malays (9.1). The evidence seems to indicate that the reason for Indians having a higher proportion of low birthweight babies is partly ethnic/genetic, and the cut-off point of 2500 g should perhaps be lowered for babies from the Indian subcontinent when international comparisons are being made.

Matched MeSH terms: Birth Order
Assessing socioeconomic correlates of birthweight in peninsular Malaysia: ethnic differences and changes over time

DaVanzo J, Habicht JP, Butz WP

Soc Sci Med, 1984;18(5):387-404.
PMID: 6729519

This paper presents evidence from the Malaysian Family Life Survey that mothers' reports of their babies' birthweights, including reports of unweighed babies' approximate size at birth, can be used to examine many biological and socioeconomic correlates of birthweight. The study uses a sample of 5583 singleton births that occurred between 1945 and 1976. In these data, the frequency distribution of birthweights and their bivariate and multivariate relationships with the biological correlates of mother's age, baby's sex, first parity and infant mortality are consistent with those found in prospective studies. A new biological correlate, mother's age at menarche, is introduced as a proxy for the mother's nutrition during childhood. Late age at menarche is associated with lower birthweight. Other results show mothers younger than 20 years and older than 35 appear to be at greater risk of bearing small babies, but the former effect is no longer important when parity is controlled. Short interbirth intervals are associated with small babies. We attempt to distinguish whether this is due to prematurity or to maternal nutritional depletion; both effects appear to be operating. Higher income appears to mitigate the pernicious effect of short interbirth intervals. Indian babies weigh significantly less than those of other ethnic groups. Furthermore, birthweights have increased since the 1950s for Malays and Chinese, but not for Indians. The lower birthweights and lack of improvement over time for Indians appear to be due to close birthspacing, lack of access to medical care and falling incomes.

Matched MeSH terms: Birth Order
Neonatal morbidity and mortality in Peninsular Malaysia

Abdul Kader H

Malays J Reprod Health, 1983 Dec;1(2):139-52.
PMID: 12313335
Matched MeSH terms: Birth Order
A hazard rate analysis of fertility using duration data from Malaysia

Chang C

Res Popul Econ, 1988;6:137-59.
PMID: 12280927
Matched MeSH terms: Birth Order*
Adult anthropometric measures and socio-demographic factors influencing age at menarche of university students in malaysia

Hossain MG, Wee AS, Ashaie M, Kamarul T

J Biosoc Sci, 2013 Sep;45(5):705-17.
PMID: 23480448 DOI: 10.1017/S0021932013000060

Early onset of menarche has been shown to be associated with breast cancer and ischaemic heart disease. Studies on age at menarche of the Malaysian population are poorly documented. This study aimed to determine the influence of anthropometric and socio-demographic factors on the age at menarche of university students in Malaysia. Data were obtained in 2010-11 from 961 students between the ages of 18 and 25 years from the University of Malaya using stratified sampling, and multiple regression analysis was applied. Sixty-three per cent of students reached menarche at the age of 12 or 13 years, with the mean and median of age at menarche being 12.45 ± 1.17 and 12.01 years, respectively. Menarcheal age was positively associated with height (p<0.05) and negatively associated with BMI (p<0.001). Students from urban areas attained menarche earlier than those from rural areas (p<0.05). Students from small-sized families attained menarche earlier than those from larger families (p<0.05). First-born students experienced menarche earlier than those who were seventh-born or later. Obese and overweight students reached menarche earlier than students who were underweight or of normal weight (p<0.01). The variations in age at menarche among the Malaysian ethnic groups were statistically insignificant. The results suggest that heavier and first-born students from small families are more likely to attain menarche earlier than their counterparts.

Matched MeSH terms: Birth Order
It is the first birth that does the damage: a cross-sectional study 20 years after delivery

Kamisan Atan I, Lin S, Dietz HP, Herbison P, Wilson PD, ProLong Study Group

Int Urogynecol J, 2018 Nov;29(11):1637-1643.
PMID: 29564511 DOI: 10.1007/s00192-018-3616-4

INTRODUCTION AND HYPOTHESIS: Levator ani muscle (LAM) and anal sphincter tears are common after vaginal birth and are associated with female pelvic organ prolapse and anal incontinence. The impact of subsequent births on LAM and external anal sphincter (EAS) integrity is less well defined. The objective of this study was to determine the prevalence of LAM and EAS trauma in primiparous (VP1) and multiparous (VP2+) women who had delivered vaginally to assess if there were differences between the two groups. The null hypothesis was: there is no significant difference in the prevalence of LAM and EAS trauma between the two groups.
METHODS: This was a cross-sectional study involving 195 women, participants of the Dunedin arm of the ProLong study (PROlapse and incontinence LONG-term research study) seen 20 years after their index birth. Assessment included a standardized questionnaire, ICS POP-Q and 4D translabial ultrasound. Post-imaging analysis of LAM and EAS integrity was undertaken blinded against other data. Statistical analysis was performed using Fisher's exact test and results were expressed as odds ratios (OR).
RESULTS: LAM avulsion and EAS defects were diagnosed in 31 (16%) and 24 (12.4%) women respectively. No significant difference in the prevalence of levator avulsion and EAS defects between primiparous (VP1) and multiparous (VP2+) women who had delivered vaginally (OR 1.9, 95% CI 0.72-5.01, p = 0.26) and (OR 1.2, 95% CI 0.4-3.8, p = 0.76) respectively.
CONCLUSIONS: Most LAM avulsions and EAS defects seem to be caused by the first vaginal birth. Subsequent vaginal deliveries after the first were unlikely to cause further LAM trauma.

Matched MeSH terms: Birth Order

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