Table 4 Zero-inflated Poisson Model for Number of Days of VPA

Current employment status

   Full-time

Reference

Reference

   Part-time

0.395

0.147, 1.071

0.068

0.635

0.368, 1.098

0.10

   Self-employed

0.645

0.194, 2.147

0.47

1.080

0.544, 2.143

0.83

   Homemaker/other unemployed

0.603

0.265, 1.370

0.23

0.866

0.544, 1.379

0.54

Years of formal education

   Through 6^th grade

Reference

Reference

   Middle school

1.370

0.521, 3.597

0.52

1.331

0.748, 2.370

0.33

   High school

1.649

0.609, 4.482

0.32

2.119

1.208,3.706

0.009

   Any college

1.608

0.604, 4.263

0.34

2.121

1.185, 3.781

0.012

Smoked cigarettes past 30 days (Y/N)

1.465

0.563, 3.819

0.43

0.907

0.513, 1.603

0.74

Body Mass Index

1.066

0.997, 1.140

0.062

0.987

0.935, 1.042

0.63

Marital status (Married/Not married)

1.511

0.629, 3.633

0.35

1.174

0.732, 1.880

0.51

Self-reported health (1=Excellent, 5=Poor)

1.481

1.057, 2.077

0.023

0.932

0.764, 1.137

0.49

Household size

1.094

0.897, 1.335

0.38

1.040

0.953, 1.135

0.38

Age (years)

1.111

0.937, 1.323

0.23

1.089

0.994, 1.191

0.068

Acculturation score

0.574

0.388, 0.849

0.006

0.840

0.676, 1.044

0.12