| Too busy work | 119 (54.8%) |
| No family support | 6 (2.8%) |
| Low practicability of continuing education contents | 18 (8.3%) |
| Quota limit | 22 (10.1%) |
| A low pass rate of graduation examination | 12 (5.5%) |
| Rigid pattern | 47 (21.7%) |
| Few information acquisition channels | 8 (3.7%) |
| Lack of continuing learning atmosphere and environment | 15 (6.9%) |
| High costs | 45 (20.7%) |
| Other | 1 (0.5%) |