| Socio-demographic characteristics | Low key competencies group | Medium key competencies group | High key competencies group | χ2 | P |
| Gender (N, %) |
|
|
| 1.953 | 0.377 |
| Male | 43 (39.8) | 91 (33.7) | 116 (32.6) | ||
| Female | 65 (60.2) | 179 (66.3) | 240 (67.4) | ||
| Eeducational level (N, %) |
|
|
| 48.247 | <0.001 |
| junior college | 77 (71.3) | 102 (37.8) | 157 (44.1) | ||
| undergraduate | 27 (25.0) | 95 (35.2) | 140 (39.3) | ||
| postgraduate | 4 (3.7) | 73 (27.0) | 59 (16.6) | ||
| Major (N, %) |
|
|
| 28.195 | <0.001 |
| Public health and preventive medicine | 3 (2.8) | 37 (13.7) | 33 (9.3) | ||
| Clinical medicine | 40 (37.0) | 90 (33.3) | 146 (41.0) | ||
| Dental medicine | 3 (2.8) | 19 (7.0) | 20 (5.6) | ||
| Traditional Chinese medicine category1 | 18 (16.7) | 65 (24.1) | 71 (19.9) | ||
| Others2 | 44 (40.7) | 59 (21.9) | 86 (24.2) | ||
| Ethnic group (N, %) |
|
|
| 2.879 | 0.238 |
| Han ethnic group | 92 (85.2) | 246 (91.1) | 316 (88.8%) | ||
| Others | 16 (14.8)) | 24 (8.9) | 40 (11.2) | ||
| Household registration (N, %) |
|
|
| 5.561 | 0.062 |
| Cities and towns | 43 (39.8) | 143 (53.0) | 169 (47.5) | ||
| Rural | 65 (60.2) | 127 (47.0) | 187 (52.5) | ||
| Serve as student cadres (N, %) |
|
|
| 8.488 | 0.014 |
| Yes | 62 (57.4) | 173 (64.1) | 254 (71.3) | ||
| No | 46 (42.6) | 97 (35.9) | 102 (28.7) |