Notzon F C, Bobadilla J L, Coria I
National Center for Health Statistics, Centers for Disease Control, Hyattsville, MD 20782.
Am J Public Health. 1992 Jul;82(7):1014-7. doi: 10.2105/ajph.82.7.1014.
In this study birthweight distributions for Mexican Americans and Mexico City were compared. Sharp differences in the two distributions were nearly eliminated by controlling for altitude. The small remaining excess in low birthweight in Mexico City appears to be due to a slight overrepresentation of tertiary hospital deliveries, and possibly to a greater prevalence of pathological conditions. The results are consistent with the favorable low birthweight rate reported for Mexican Americans and illustrate the need to adjust for altitude in studies of low birthweight.
在本研究中,对墨西哥裔美国人与墨西哥城的出生体重分布进行了比较。通过控制海拔高度,两种分布中的显著差异几乎被消除。墨西哥城低出生体重儿中仍存在的少量过剩情况,似乎是由于三级医院分娩的比例略有过高,也可能是由于病理状况的患病率更高。这些结果与报道的墨西哥裔美国人有利的低出生体重率相一致,并说明了在低出生体重研究中对海拔高度进行调整的必要性。