From: Area-level poverty and preterm birth risk: A population-based multilevel analysis
White | PTB (< 35 wk) | PTB (< 32 wk) | ||||
---|---|---|---|---|---|---|
OR (95% CI) | IOR-80 * | MOR† | OR (95% CI) | IOR-80 * | MOR† | |
Model I: Poverty Only | 1.12 | 1.07 | ||||
2nd Quartile | 1.10 (0.97, 1.26) | 0.88, 1.38 | 1.08 (0.96, 1.21) | 0.95, 1.23 | ||
3rd Quartile | 1.25 (1.10 1.43) | 1.00, 1.57 | 1.30 (1.16, 1.46) | 1.14, 1.48 | ||
4th Quartile | 1.24 (1.10, 1.41) | 0.99, 1.55 | 1.33 (1.19, 1.49) | 1.17, 1.52 | ||
Model II: Model I + Demographic factors | 1.1 | 1.04 | ||||
2nd Quartile | 1.09 (0.97, 1.21) | 0.91, 1.30 | 1.06 (0.96, 1.17) | 0.99, 1.14 | ||
3rd Quartile | 1.16 (1.04, 1.30) | 0.97, 1.39 | 1.19 (1.08, 1.31) | 1.11, 1.27 | ||
4th Quartile | 1.13 (1.02, 1.26) | 0.95, 1.36 | 1.20 (1.09, 1.32) | 1.12, 1.29 | ||
Model III: Model II + Prenatal Care | 1.1 | 1.07 | ||||
2nd Quartile | 1.09 (0.97, 1.23) | 0.90, 1.32 | 1.07 (0.95, 1.21) | 0.94, 1.23 | ||
3rd Quartile | 1.17 (1.04, 1.31) | 0.97, 1.41 | 1.18 (1.05, 1.33) | 1.03, 1.34 | ||
4th Quartile | 1.13 (1.02, 1.26) | 0.94, 1.37 | 1.18 (1.05, 1.32) | 1.03, 1.35 | ||
Model IV: Model III + Behaviors | 1.11 | 1.07 | ||||
2nd Quartile | 1.10 (0.98, 1.24) | 0.91, 1.33 | 1.08 (0.96, 1.22) | 0.95, 1.24 | ||
3rd Quartile | 1.18 (1.05, 1.33) | 0.98, 1.43 | 1.19 (1.06, 1.34) | 1.04, 1.36 | ||
4th Quartile | 1.15 (1.03, 1.28) | 0.95, 1.39 | 1.20 (1.07, 1.34) | 1.05, 1.37 | ||
Model V: Model III + Medical Risk Factors | 1.14 | 1.16 | ||||
2nd Quartile | 1.12 (0.97, 1.30) | 0.87, 1.45 | 1.12 (0.93, 1.34) | 0.84, 1.49 | ||
3rd Quartile | 1.22 (1.05, 1.41) | 0.94, 1.57 | 1.24 (1.03, 1.49) | 0.93, 1.65 | ||
4th Quartile | 1.17 (1.02, 1.34) | 0.91, 1.51 | 1.23 (1.04, 1.46) | 0.92, 1.65 | ||
Black | PTB (< 35 wk) | PTB (< 32 wk) | ||||
OR (95% CI) | IOR-80 * | MOR† | OR (95% CI) | IOR-80 * | MOR† | |
Model I: Poverty Only | 1.2 | 1.22 | ||||
2nd Quartile | 1.21 (0.88, 1.68) | 0.86, 1.70 | 1.25 (0.82, 1.90) | 0.85, 1.83 | ||
3rd Quartile | 1.26 (0.91, 1.76) | 0.90, 1.77 | 1.39 (0.91, 2.14) | 0.95, 2.04 | ||
4th Quartile | 1.46 (1.08, 1.98) | 1.04, 2.05 | 1.33 (0.89, 1.97) | 0.91, 1.94 | ||
Model II: Model I + Demographic factors | 1.11 | 1.19 | ||||
2nd Quartile | 1.18 (0.90, 1.54) | 0.96, 1.45 | 1.24 (0.83, 1.85) | 0.90, 1.71 | ||
3rd Quartile | 1.18 (0.89, 1.55) | 0.96, 1.45 | 1.34 (0.89, 2.02) | 0.97, 1.86 | ||
4th Quartile | 1.33 (1.04, 1.72) | 1.09, 1.64 | 0.87 (0.87, 1.85) | 0.92, 1.76 | ||
Model III: Model II + Prenatal Care | 1.11 | 1.18 | ||||
2nd Quartile | 1.18 (0.90, 1.54) | 0.96, 1.44 | 1.23 (0.82, 1.82) | 0.89, 1.68 | ||
3rd Quartile | 1.16 (0.88, 1.53) | 0.95, 1.42 | 1.30 (1.87, 1.96) | 0.95, 1.79 | ||
4th Quartile | 1.30 (1.01, 1.68) | 1.06, 1.60 | 1.22 (0.83, 1.77) | 0.89, 1.67 | ||
Model IV: Model III + Behaviors | 1.12 | 1.19 | ||||
2nd Quartile | 1.16 (0.88, 1.52) | 0.93, 1.44 | 1.21 (0.81, 1.81) | 0.87, 1.68 | ||
3rd Quartile | 1.14 (0.86, 1.51) | 0.92, 1.42 | 1.28 (0.85, 1.94) | 0.93, 1.78 | ||
4th Quartile | 1.31 (1.01, 1.69) | 1.05, 1.62 | 1.21 (0.83, 1.78) | 0.88, 1.68 | ||
Model V: Model III + Medical Risk Factors | 1.16 | 1.29 | ||||
2nd Quartile | 1.20 (0.89, 1.63) | 0.91, 1.60 | 1.29 (0.80, 2.07) | 0.79, 2.10 | ||
3rd Quartile | 1.16 (0.85 1.58) | 0.87, 1.54 | 1.36 (0.84, 2.21) | 0.84, 2.21 | ||
4th Quartile | 1.24 (0.93, 1.65) | 0.93, 1.65 | 1.16 (0.74, 1.82) | 0.71, 1.88 |