Table 1 Trainees’ characteristics (N = 21)
| Characteristics of trainees | Descriptions | n (%) |
|---|---|---|
| Age range | 20–29 | 17 (80.9) |
| 30–39 | 4 (19.1) | |
| gender | Female | 15 (71.4) |
| Male | 6 (28.6) | |
| Training base | Jinan | 11 (52.4) |
| Qingdao | 10 (47.6) | |
| Years of training | 1 | 7 (33.3) |
| 2 | 11 (52.4) | |
| 3 | 3 (14.3) | |
| marital status | Yes | 8 (38.1) |
| No | 13 (61.9) |