caa a22 4500 386396566 CHVBK 20180307112140.0 cr unu---uuuuu 161130e198910 xx s 000 0 eng 10.1017/S0021932000018174 doi S0021932000018174 pii (NATIONALLICENCE)cambridge-10.1017/S0021932000018174 Are preterm black infants larger than preterm white infants, or are they more misclassified? [Elektronische Daten] In birth certificate data for Massachusetts resident births from 1978 to 1982, 12-27% of births purportedly under 31 weeks of gestation were probably misclassified, i.e. had birthweight ≥2500g. Correcting for maldistribution of births removed 34% and 23%, respectively, of black and white births with reported gestational ages <36 weeks but with implausible weights. Percentages of unknown and incomplete reports of last menstrual period were also significantly higher for blacks. After adjustment, preterm black infants weighed less than whites at each gestational age. The proportion of infants <2500g born at term (≥37 weeks gestation) was higher (although not significantly) among blacks. These findings are consistent with hypotheses that low socioeconomic status negatively affects the rate of intrauterine growth. Copyright © Cambridge University Press 1989 Suthutvoravut Somsak Division of Family Health Services, Massachusetts Department of Public Health, USA Hogue Carol J. R. Division of Reproductive Health, Center for Health Promotion and Education, Centers for Disease Control, Atlanta, USA Guyer Bernard Division of Family Health Services, Massachusetts Department of Public Health, USA Anderka Marlene Division of Family Health Services, Massachusetts Department of Public Health, USA Oberle Mark W. Division of Reproductive Health, Center for Health Promotion and Education, Centers for Disease Control, Atlanta, USA Journal of Biosocial Science Cambridge University Press 21/4(1989-10), 443-452 0021-9320 21:4<443 1989 21 JBS https://doi.org/10.1017/S0021932000018174 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0021932000018174 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Suthutvoravut Somsak Division of Family Health Services, Massachusetts Department of Public Health, USA NATIONALLICENCE 700 1- Hogue Carol J. R. Division of Reproductive Health, Center for Health Promotion and Education, Centers for Disease Control, Atlanta, USA NATIONALLICENCE 700 1- Guyer Bernard Division of Family Health Services, Massachusetts Department of Public Health, USA NATIONALLICENCE 700 1- Anderka Marlene Division of Family Health Services, Massachusetts Department of Public Health, USA NATIONALLICENCE 700 1- Oberle Mark W. Division of Reproductive Health, Center for Health Promotion and Education, Centers for Disease Control, Atlanta, USA NATIONALLICENCE 773 0- Journal of Biosocial Science Cambridge University Press 21/4(1989-10), 443-452 0021-9320 21:4<443 1989 21 JBS CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge