Table 4 Multivatiable logistic regression of factors associated with polypharmacy in community patients after PSW and effect of SDM on polypharmacy
 Variables | OR (95%CI) | Marginal Effects (95% CI) | P-value |
|---|---|---|---|
SDM (ref = Low) | |||
 High | 0.92 (0.61–1.38) | -0.01 (-0.06–0.04) | 0.722 |
Gender (ref = Female) | |||
 Male | 1.26 (0.84–1.89) | 0.03 (-0.03–0.08) | 0.264 |
Age (ref = 66–75) | |||
 ≥76 | 1.55 (0.89–2.66) | 0.06 (-0.02–0.13) | 0.115 |
Domicile (ref = Rural) | |||
 Urban | 2.28 (1.29–4.11) | 0.10 (0.03–0.17) | 0.005 |
Education (ref = Primary School and Below) | |||
 Junior high school | 1.14 (0.68–1.91) | 0.02 (-0.05–0.08) | 0.610 |
 Senior high school and above | 1.29 (0.70–2.39) | 0.03 (-0.05–0.11) | 0.415 |
Family annual income/yuan (ref =  ~ 12,000) | |||
 12,0001–24,000 | 2.34 (1.10–4.90) | 0.12 (0.01–0.24) | 0.025 |
 24,001–36,000 | 0.54 (0.25–1.15) | -0.07 (-0.15–0.02) | 0.117 |
 36,001 ~  | 0.88 (0.49–1.60) | -0.02 (-0.09–0.06) | 0.679 |
Compliance (ref = No) | |||
 Yes | 0.79 (0.54–1.17) | -0.03 (-0.08–0.02) | 0.242 |
Number of chronic disease (ref = 1 disease) | |||
 2 diseases | 3.09 (1.75–5.64) | 0.09 (0.05–0.14) |  < 0.001 |
 3 diseases and above | 22.40 (13.07–40.34) | 0.48 (0.41–0.54) |  < 0.001 |