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Association between years of maternal education and preterm delivery among mothers 18 years of age and older, Santiago, Chile, 2004 |
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| Maternal Education (years) |
Preterm Delivery |
Preterm Low Birthweight Delivery |
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| Crude |
Adjusted3 |
Crude |
Adjusted3 |
|
|
|
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| OR (95% CI) |
OR (95% CI) |
OR (95% CI) |
OR (95% CI) |
|
|
|
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| < 12 yrs |
1.12 (1.03, 1.23) |
1.17 (1.06, 1.29) |
1.14 (1.01, 1.29) |
1.27 (1.11, 1.45) |
| = 12 yrs |
1.05 (0.97, 1.14) |
1.10 (1.01, 1.20) |
1.12 (1.00, 1.26) |
1.20 (1.06, 1.35) |
| > 12 yrs |
REFERENT |
REFERENT |
REFERENT |
REFERENT |
|
|
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| homogenetity1 |
p = 0.04 |
p < 0.01 |
p = 0.06 |
p < 0.01 |
| trend2 |
p = 0.01 |
p < 0.01 |
p = 0.03 |
p < 0.01 |
|
1 test of homogeneity (equal odds) 2 test for trend of odds 3 adjusted for parity, sex of child and maternal age using logistic regression | ||||
Kaufman et al. BMC Pregnancy and Childbirth 2008 8:46 doi:10.1186/1471-2393-8-46 |
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