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Table 3 Variables for per- and post-matched samples for the intervention and control group

From: Application of propensity scores to explore the effect of public reporting of medicine use information on rational drug use in China: a quasi-experimental design

Variable name Pre-PSM approach Post-PSM approach
Control group Intervention group P value Control group Intervention group P value
Gender       
 Male 92 (64.34%) 80 (61.07%) 0.576 68 (62.96%) 70 (65.74%) 0.670
 Female 51 (35.66%) 51 (38.93%)   40 (37.04%) 38 (34.26%)  
Education level       
 High school or less 46 (32.17%) 38 (29.01%) 0.837 37 (34.26%) 34 (31.48%) 0.927
 Some college or associates 70 (48.95%) 69 (52.67%) 0.752 50 (46.30%) 54 (50.00%) 0.733
 Bachelors or higher (Refer) 27 (18.88%) 24 (18.32%)   21 (19.44%) 20 (18.52%)  
Title       
 Not certified 5 (3.50%) 7 (5.34%) 0.199 5 (4.63%) 6 (5.56%) 0.433
 Certified doctor 25 (17.48%) 32 (24.43%) 0.123 20 (18.52%) 25 (23.15%) 0.282
 House physician 25 (17.48%) 35 (26.72%) 0.090 19 (17.59%) 27 (25.00%) 0.202
 Doctor in charge of a case 78 (54.55%) 52 (39.69%) 0.618 56 (51.85%) 45 (41.67%) 0.677
 Assistant director physician and above (Refer) 10 (6.99%) 5 (3.82%)   8 (7.41%) 5 (4.63%)  
Monthly income (RMB yuan)       
 <1500 30 (20.98%) 33 (25.19%) 0.107 26 (24.07%) 33 (30.56%) 0.636
 1501-2000 55 (38.46%) 46 (35.11%) 0.030 39 (36.11%) 41 (37.96%) 0.444
 2001-2500 37 (25.87%) 25 (19.08%) 0.015 27 (25.00%) 20 (18.52%) 0.215
 2501-3000 16 (11.19%) 13 (9.92%) 0.054 12 (11.11%) 7 (6.48%) 0.163
 >3001 (Refer) 5 (3.50%) 14 (10.69%)   4 (3.70%) 7 (6.48%)  
Age (year) 41  ± 9.92 38  ± 9.86 0.055 40  ± 10.74 39  ± 9.43 0.921
Experience (year) 20  ± 13.36 18  ± 10.82 0.088 20  ± 11.62 20  ± 10.19 0.822
  1. Note: For continuous and categorical variables, median  ± standard deviation and frequency (percent) were used, respectively. Differences between groups were tested by independent t test (Mann-Whitney U test) for continuous variables and by chi-square test for categorical variables. All p-values were two tailed.