HR

LL

UL

Wald Chi-Square

df

p

Mother’s Age

0.956

0.934

0.979

16.9927

4

0.002

Infant ICU (=Yes)

1.337

0.874

2.047

Unemployed (=Yes)

0.944

0.719

1.239

Used Marijuana (=Yes)

0.745

0.533

1.041

Mother’s Age

0.959

0.937

0.982

19.7750

4

<0.001

Infant ICU (=Yes)

1.545

1.033

2.311

Unemployed (=Yes)

1.195

0.919

1.554

Drank (=Yes)

0.911

0.709

1.169

Mother’s Age

0.959

0.937

0.982

20.5287

4

<0.001

Infant ICU (=Yes)

1.532

1.024

2.291

Unemployed (=Yes)

1.218

0.935

1.587

Smoked (=Yes)

0.866

0.662

1.132

Mother’s Age

0.959

0.937

0.982

19.8562

4

<0.001

Infant ICU (=Yes)

1.550

1.036

2.319

Unemployed (=Yes)

1.208

0.928

1.572

Combined Substance Score

0.981

0.932

1.032