Table 3 Multivatiable logistic regression of factors associated with polypharmacy in inpatients after PSW and effect of SDM on polypharmacy
| Â | OR(95%CI) | Marginal Effects (95% CI) | P-value |
|---|---|---|---|
SDM (ref = Low) | |||
 High | 0.64 (0.44–0.94) | -0.09 (-0.17- -0.01) | 0.022 |
Gender (ref = Female) | |||
 Male | 1.44 (0.97–2.13) | 0.08 (0.00–0.16) | 0.072 |
Age (ref = 66–75) | |||
 ≥76 | 1.57 (1.06–2.34) | 0.09 (0.01–0.18) | 0.026 |
Domicile (ref = Rural) | |||
 Urban | 1.35 (0.86–2.12) | 0.06 (-0.03- 0.16) | 0.189 |
Education (ref = Primary School and Below) | |||
 Junior high school | 0.95 (0.59–1.54) | -0.01 (-0.11- 0.09) | 0.841 |
 Senior high school and above | 0.77 (0.48–1.23) | -0.05 (-0.15- 0.04) | 0.282 |
Family annual income/yuan (ref =  ~ 12,000) | |||
 12,0001–24,000 | 0.57 (0.25–1.30) | -0.12 (-0.30- 0.06) | 0.181 |
 24,001–36,000 | 0.22 (0.10–0.45) | -0.33 (-0.48- -0.18) |  < 0.001 |
 36,001 ~  | 0.89 (0.47–1.66) | -0.02 (-0.15- 0.11) | 0.727 |
Number of chronic disease (ref = 1 disease) | |||
 2 diseases | 1.87 (1.04–3.42) | 0.14 (0.01- 0.26) | 0.039 |
 3 diseases and above | 4.57 (2.63–8.11) | 0.33 (0.22–0.45) |  < 0.001 |