Table 3.
Results of multivariable regression analysis for examining the association between IPI and LBW stratified across birth order, mother's schooling, TT injections and consumption of IFA tablets/syrup.
| Interpregnancy interval |
|||||||||
|---|---|---|---|---|---|---|---|---|---|
| <6 |
06–11 |
12–17 |
18-23 ® | 24–29 |
30–35 |
36–41 |
42–47 |
≥48 |
|
| OR (95% CI) | OR(95% CI) | OR (95% CI) | OR(95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | OR(95% CI) | ||
| Birth Order | |||||||||
| 1 | 1.08(0.67,1.75) | 1.24(0.76,2.03) | 1.35(0.81,2.26) | 1 | 1.35(0.66,2.78) | 1.60(0.70,3.67) | 3.58*(1.03,12.44) | 1.03(0.20,5.31) | 0.07*(0.01,0.74) |
| 2 | 1.20(0.99,1.45) | 1.04(0.88,1.21) | 1.11(0.96,1.27) | 1 | 0.98(0.83,1.17) | 1.09(0.82,1.45) | 1.04(0.82,1.32) | 1.09(0.75,1.57) | 0.72(0.42,1.21) |
| 3 | 1.32*(1.03,1.70) | 1.11(0.89,1.39) | 1.01(0.83,1.22) | 1 | 1.10(0.87,1.39) | 0.94(0.71,1.25) | 0.86(0.60,1.24) | 0.99(0.63,1.58) | 2.37*(1.10,5.12) |
| ≥4 | 1.49*(1.15,1.93) | 1.01(0.80,1.28) | 1.05(0.86,1.28) | 1 | 1.14(0.89,1.45) | 0.93(0.70,1.24) | 0.99(0.69,1.45) | 1.42(0.87,2.30) | 1.89(0.85,4.17) |
| Mother's Schooling | |||||||||
| No schooling | 1.35*(1.11,1.64) | 1.14(0.96,1.36) | 1.07(0.91,1.25) | 1 | 1.10(0.91,1.33) | 0.94(0.75,1.17) | 0.96(0.72,1.28) | 0.97(0.61,1.54) | 2.23*(1.15,4.32) |
| Primary | 1.42*(1.05,1.93) | 1.17(0.90,1.51) | 1.19(0.94,1.51) | 1 | 1.26(0.94,1.67) | 1.59(0.98,2.58) | 1.30(0.84,1.99) | 1.85(0.97,3.52) | 1.43(0.48,4.28) |
| Secondary | 1.06(0.87,1.28) | 1.04(0.89,1.22) | 1.08(0.93,1.25) | 1 | 0.99(0.83,1.19) | 0.95(0.75,1.20) | 0.94(0.72,1.22) | 1.01(0.69,1.45) | 0.62(0.35,1.08) |
| Higher | 1.10(0.67,1.82) | 0.79(0.49,1.27) | 0.93(0.60,1.44) | 1 | 0.74(0.44,1.25) | 0.84(0.43,1.62) | 1.24(0.58,2.64) | 1.08(0.41,2.87) | 0.64(0.16,2.58) |
| ≥2 TT injections | |||||||||
| No | 1.42*(1.07,1.88) | 1.02(0.79,1.31) | 1.02(0.81,1.29) | 1 | 1.09(0.82,1.44) | 0.81(0.57,1.16) | 1.15(0.77,1.71) | 1.04(0.54,1.97) | 0.91(0.34,2.40) |
| Yes | 1.14(0.99,1.32) | 1.08(0.95,1.22) | 1.10(0.98,1.23) | 1 | 1.04(0.91,1.19) | 1.09(0.88,1.36) | 1.01(0.82,1.22) | 1.15(0.87,1.51) | 1.32(0.85,2.06) |
| Consumed ≥100 IFA tablets/equivalent syrup | |||||||||
| No | 1.29*(1.13,1.48) | 1.10(0.98,1.25) | 1.12*(1.01,1.25) | 1 | 1.09(0.96,1.24) | 0.97(0.82,1.14) | 1.10(0.89,1.35) | 1.03(0.75,1.40) | 1.67*(1.02,2.73) |
| Yes | 0.99(0.74,1.30) | 0.97(0.76,1.24) | 1.01(0.81,1.23) | 1 | 0.95(0.73,1.23) | 1.20(0.78,1.84) | 0.84(0.60,1.19) | 1.26(0.81,1.97) | 0.62(0.33,1.16) |
Note. Regression results are adjusted for other control variables listed in Table 1.