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Table 4 Multilevel logistic regression models for province-level variables interaction effects on mental disabilitya

From: Effect modification of social-context changes on mental disability in China from 1987 to 2006: a multi-level study of 1.9 million people

 

Per capita gross domestic product, OR (95% CI)

High

Medium

Low

P trend

1987

Male

 Number of health professional in per 1,000 people

  High

Reference

0.84 (0.57-1.11)

0.96 (0.53-1.39)

0.86

  Medium

0.69 (0.40-0.99)

1.31 (0.59-2.03)

0.63 (0.34-0.93)

0.98

  Low

1.20 (0.53-1.86)

1.20 (0.77-1.63)

1.03 (0.72-1.35)

0.37

Female

 Number of health professional in per 1,000 people

  High

Reference

0.89 (0.59-1.20)

1.33 (0.70-1.95)

0.42

  Medium

0.64 (0.35-0.94)

0.87 (0.35-1.39)

0.82 (0.43-1.21)

0.43

  Low

0.62 (0.24-0.99)

0.88 (0.54-1.23)

1.09 (0.73-1.46)

0.01

2006

Male

 Number of health professional in per 1,000 people

  High

Reference

0.92 (0.63-1.20)

NA

NA

  Medium

1.01 (0.71-1.49)

1.03 (0.76-1.30)

0.72 (0.47-0.97)

0.16

  Low

1.11 (0.58-1.64)

1.15 (0.74-1.55)

1.21 (0.93-1.49)

0.57

Female

 Number of health professional in per 1,000 people

  High

Reference

1.03 (0.71-1.35)

NA

NA

  Medium

1.09 (0.71-1.47)

1.02 (0.76-1.29)

0.77 (0.51-1.04)

0.20

  Low

0.60 (0.31-0.89)

1.46 (0.95-1.97)

1.08 (0.83-1.33)

0.33

  1. Abbreviations: CI confidence interval, OR odds ratio, NA not available
  2. a adjustment for individual-level variable