Table 1.
Balance in baseline covariates and estimated risk differences for the six different approaches to propensity score matching in the CCHS sample.
Variable | Specification of propensity score model |
|||||
---|---|---|---|---|---|---|
Unweighted logistic regression model |
Weighted logistic regression model |
Unweighted logistic regression model + survey weight as an additional covariate |
||||
Retained weights | Inherited weights | Retained weights | Inherited weights | Retained weights | Inherited weights | |
Standardized differences | ||||||
Age 20–29 years | −0.010 | 0.007 | −0.018 | 0.013 | −0.017 | 0.007 |
Age 30–39 years | 0.026 | 0.001 | 0.020 | 0.001 | 0.015 | 0.009 |
Age 40–49 years | −0.008 | −0.002 | −0.008 | 0.001 | −0.007 | 0.011 |
Age ≥50 years | −0.011 | −0.008 | 0.007 | −0.020 | 0.011 | −0.034 |
Two or more chronic conditions | 0.006 | −0.004 | 0.008 | 0.003 | 0.022 | 0.016 |
Ate fruits and vegetables <3 times per day | 0.002 | 0.002 | 0.001 | 0.008 | −0.008 | −0.010 |
Income less than $30,000 | −0.018 | 0.001 | −0.017 | 0.006 | −0.033 | −0.001 |
Income between $30,000 and $60,000 | −0.002 | −0.005 | −0.009 | −0.008 | −0.009 | −0.015 |
Income between $60,000 and $80,000 | 0.019 | 0.000 | 0.009 | −0.002 | 0.012 | −0.011 |
Income greater than $80,000 | −0.001 | 0.004 | 0.016 | 0.004 | 0.027 | 0.026 |
Male | −0.045 | −0.003 | −0.030 | −0.003 | −0.028 | 0.021 |
Physically inactive | −0.001 | 0.002 | 0.008 | 0.004 | 0.012 | 0.100 |
Rural dwelling | 0.001 | 0.000 | 0.003 | −0.007 | 0.012 | −0.125 |
Poor sense of belonging | −0.010 | 0.003 | −0.011 | 0.011 | −0.007 | 0.001 |
Current smoking | −0.013 | 0.000 | −0.026 | 0.001 | 0.015 | 0.008 |
Non-drinker | 0.006 | 0.005 | 0.023 | 0.011 | 0.011 | 0.072 |
Moderate drinker | −0.023 | −0.004 | −0.042 | −0.009 | −0.036 | −0.057 |
Heavy drinker | 0.013 | −0.002 | 0.013 | −0.003 | 0.019 | −0.024 |
Work status (unemployed in past year) | −0.008 | −0.010 | −0.020 | −0.011 | −0.005 | −0.031 |
Effect of low education on the probability of a prevalent mood or anxiety disorder | ||||||
Difference in probability of prevalent mood or anxiety disorder (95% CI) | −0.005 (−0.017, 0.006) | −0.013 (−0.025, −0.001) | −0.013 (−0.025, 0) | −0.02 (−0.031, −0.008) | −0.012 (−0.026, 0.002) | −0.018 (−0.033, −0.003) |