Table 4 Percentages and multivariate adjusted odds ratio (and 95% CIs) for infant vitamin D supplementation in infants receiving greater than 50% of feeds from breast milk by select characteristics (n = 420)
Characteristic | % (n) | OR (95% CI) | p-value |
|---|---|---|---|
Maternal Age | |||
   < 31 y | 87.6 (134) | 1.00 |  |
   ≥31 y | 89.9 (286) | 1.28 (0.65, 2.50) | 0.479 |
Baby's ethnicity | |||
   European | 88.9 (160) | 1.00 |  |
   Chinese | 89.6 (129) | 1.34 (0.62, 2.86) | 0.456 |
   Other | 89.1 (131) | 1.32 (0.62, 2.80) | 0.469 |
Annual family income | |||
   <$40,000 | 83.1 (74) | 1.00 |  |
   $40,000-80,000 | 92.2 (95) | 2.51 (0.98, 6.41) | 0.054 |
   >$80,000 | 91.4 (170) | 2.24 (0.94, 5.30) | 0.068 |
   Non-responder1 | 87.1 (81) | 1.35 (0.58, 3.14) | 0.488 |
Education | |||
Less than completed trade/vocational training and college/university | 87.0 (87) | 1.00 | Â |
   Completed trade/vocational training and college/university | 89.8 (333) | 0.99 (0.48, 2.04) | 0.984 |
Parity | |||
   Primipara | 90.5 (219) | 1.00 |  |
   Multipara | 87.8 (201) | 0.69 (0.37, 1.29) | 0.244 |