Table 4 |
|||
| Crude and adjusted prevalence ratios (PR) with 95% confidence intervals analyses for low birthweight recurrence [LBWR]* | |||
| Variable | Crude PRa [CI95%] | Adjusted PRa [CI95%] | p |
| Parity [previous births] (level 1) | 0.01 | ||
| 1 | 1.0 Reference | ||
| 2 | 1.56 [0.95,2.55] | ||
| ≥3 | 1.93 [1.23,3.02] | ||
| Economic status (level 2) | 0.045 | ||
| A and B | 0.15 [0.03,0.65] | 0.89 [0.01,0.46] | |
| C | 0.34 [0.15,0.74] | 0.25 [0.10,0.60] | |
| D | 0.69 [0.38,1.24] | 0.60 [0.32,1.10] | |
| E (poorest) | 1.0 Reference | 1.0 Reference | |
| Father’s schooling (years) (level 2) | 0.13 | ||
| 0 – 4 | 1.80 [1.02,3.19] | 0.54 [0.25,1.15] | |
| 5 – 8 | 1.32 [0.76,2.28] | 0.47 [0.22,1.00] | |
| ≥ 9 | 1.0 Reference | 1.0 Reference | |
| Preterm birth history (level 4) | <0.001 | ||
| No | 1.0 Reference | 1.0 Reference | |
| Yes | 3.55 [2.33,5.41] | 4.01 [2.27,7.10] | |
| Newborn’s sex (level 4) | <0.001 | ||
| Male | 1.0 Reference | 1.0 Reference | |
| Female | 1.99 [1.31,3.02] | 2.61 [1.45,4.69] | |
| Prenatal care (level 5) | 0.003 | ||
| Adequate | 1.0 Reference | 1.0 Reference | |
| Intermediate or Inadequate | 2.09 [1.40,3.13] | 2.57 [1.37,4.81] | |
| Miscarriage threat (level 6) | 0.14 | ||
| No | 1.01 [0.56,1.81] | 2.00 [0.77,5.14] | |
| Yes | 1.0 Reference | 1.0 Reference | |
| Gestational weight gain (kg) (level 6) | 0.04 | ||
| < 7 | 1.0 Reference | 1.0 Reference | |
| 7 – 9.9 | 1.47 [0.26,0.84] | 0.59 [0.31,1.13] | |
| ≥ 10 | 0.83 [0.02,0.26] | 0.09 [0.01,0.77] | |
* LBWR defined as birth weight < 2,500 g in the index pregnancy (pregnancy that ended in 2004) amongst women with at least one previous LBW newborn in the two immediate pregnancies before the pregnancy that ended in 2004.
a: Prevalence Ratios; CI: Confidence Interval.
Sclowitz et al. BMC Pregnancy and Childbirth 2013 13:20 doi:10.1186/1471-2393-13-20
