Table 5

Population attributable risks for SGA of area average income and maternal risk factors
Population attributable risk Population attributable risk % SGA cases/year
Crude
Average income quintile 1.2 17.0 191
Smoking during pregnancy 0.2 2.2 22
Parity (first birth) 2.3 31.7 360
Underweight (<18.5) 0.5 6.3 69
Height (bottom four quintiles) 3.4 47.6 543
Hypertension 0.4 5.7 62
Oligohydramnios 0.4 6.1 66
Placental disorder 0.1 1.4 12
Adjusted
Average income quintile 1.1 13.6 181
Smoking during pregnancy 0.2 2.5 34
Parity (first birth) 2.6 32.1 415
Underweight (<18.5) 0.5 6.2 89
Height (bottom four quintiles) 4.1 50.6 651
Hypertension 0.5 6.2 77
Oligohydramnios 0.6 7.4 100
Placental disorder 0.1 1.2 14

Hayward et al.

Hayward et al. BMC Public Health 2012 12:333   doi:10.1186/1471-2458-12-333

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