School marks and IQ-test scores for low birth weight children at the age of 13.
The present study was based on data from a longitudinal research program. The cohort consisted of 12,079 children, born in the Stockholm area in 1953. There were 494 children born with low birth weight (LBW; 2500 g or less). The results of the present study showed, that the LBW children had significantly lower school marks and intelligence-test scores (numerical, verbal and logical abilities) at the age of 13 than the normal birth weight children (NBW). For girls reared in non-manual socio-economic status (SES), decreased school marks and IQ-test scores were related to birth weight, and this was especially pronounced for LBW girls born after pregnancy week 37. For boys, however, no decreased school marks and IQ-test scores were related to birth weight and gestational age, with the exception of verbal ability for LBW boys born after pregnancy week 37 reared in non-manual SES.
Lagerström
M
M
Department of Psychology, Stockholm University, Sweden.
Bremme
K
K
Eneroth
P
P
Janson
C G
CG
D000293:Adolescent; D036861:Delivery, Obstetric; D005260:Female; D005317:Fetal Growth Retardation; D005865:Gestational Age; D006801:Humans; D007230:Infant, Low Birth Weight / Q000523:psychology*; D007231:Infant, Newborn; D007236:Infant, Small for Gestational Age; D007361:Intelligence Tests; D008137:Longitudinal Studies; D008297:Male; D011225:Pre-Eclampsia / Q000503:physiopathology; D011247:Pregnancy; D012574:Schools; D012737:Sex Factors; D012931:Social Environment; D013548:Sweden