The effect of high altitude and other risk factors on birthweight: independent or interactive effects?
| Autor: | G M Jensen, Lorna G. Moore |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Adult
Male Colorado Birth weight Mothers Prenatal care Fathers Altitude Pregnancy medicine Birth Weight Humans Risk factor Public Health Environmental and Occupational Health Gestational age Effects of high altitude on humans Pregnancy Complications Logistic Models Linear Models Female medicine.symptom Parity (mathematics) Weight gain Research Article Demography |
| Zdroj: | American Journal of Public Health. 87:1003-1007 |
| ISSN: | 1541-0048 0090-0036 |
| Popis: | OBJECTIVES: This study examined whether the decline in birth-weight with increasing altitude is due to an independent effect of altitude or an exacerbation of other risk factors. METHODS: Maternal, paternal, and infant characteristics were obtained from 3836 Colorado birth certificates from 1989 through 1991. Average altitude of residence for each county was determined. RESULTS: None of the characteristics related to birthweight (gestational age, maternal weight gain, parity, smoking, prenatal care visits, hypertension, previous small-for-gestational-age infant, female newborn) interacted with the effect of altitude. Birthweight declined an average of 102 g per 3300 ft (1000 m) elevation when the other characteristics were taken into account, increasing the percentage of low birthweight by 54% from the lowest to the highest elevations in Colorado. CONCLUSIONS: High altitude acts independently from other factors to reduce birthweight and accounts for Colorado's high rate of low birthweight. |
| Databáze: | OpenAIRE |
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