|
a – Odds ratios (OR) and 95% confidence intervals (CI) for association of inadequate/no prenatal care with preterm birth (< 37 completed weeks gestation)*
|
|---|
|
Index
|
Unadjusted OR
|
95% CI
|
Adjusted OR**
|
95% CI
|
|---|
|
APNCU Index
|
1.3
|
1.2 – 1.5
|
1.2
|
1.1 – 1.3
|
|
R-GINDEX
|
1.1
|
1.0 – 1.2
|
1.0
|
0.9 – 1.1
|
|
b – Odds ratios (OR) and 95% confidence intervals (CI) for association of inadequate/no prenatal care with low birth weight (<2500 grams)*
|
|
Index
|
Unadjusted OR
|
95% CI
|
Adjusted OR**
|
95% CI
|
|
APNCU Index
|
1.4
|
1.3 – 1.6
|
1.3
|
1.2 – 1.5
|
|
R-GINDEX
|
1.2
|
1.1 – 1.4
|
1.1
|
1.0 – 1.3
|
|
c – Odds ratios (OR) and 95% confidence intervals (CI) for association of inadequate/no prenatal care with small-for-gestational age (birth weight < 10
th
percentile for gestational age)*
|
|
Index
|
Unadjusted OR
|
95% CI
|
Adjusted OR**
|
95% CI
|
|
APNCU Index
|
1.5
|
1.4 – 1.6
|
1.4
|
1.3 – 1.5
|
|
R-GINDEX
|
1.4
|
1.3 – 1.5
|
1.4
|
1.3 – 1.5
|
- * Inadequate/no prenatal care was compared to the reference group of all other types of care (intermediate, adequate and intensive).
- **Controlling for maternal age and parity, and adjusting for within-mother dependency. Maternal age was studied using categories of <20 years, 20–24 years, 25–29 years, 30–34 years, and 35+ years, with 35+ years as the reference group. Parity was studied using categories of first birth, 2nd-3rd birth and 4 or more births, with first birth as the reference group.
b – Odds ratios (OR) and 95% confidence intervals (CI) for association of inadequate/no prenatal care with low birth weight (<2500 grams)*c – Odds ratios (OR) and 95% confidence intervals (CI) for association of inadequate/no prenatal care with small-for-gestational age (birth weight < 10th percentile for gestational age)*
