| Total (%) n = 86 | Early-career (n = 27) | Mid-career (n = 59) | p-value | ||||
| # | % | # | % | ||||
| Materials used in STD education classes | Textbook | 31 (36.0) | 7 | 25.9 | 24 | 40.7 | ns |
| Self-made materials | 47 (54.7) | 13 | 48.1 | 34 | 57.6 | ||
| Ready-made materials | 54 (62.8) | 19 | 70.4 | 35 | 59.3 | ||
| Video | 22 (25.6) | 10 | 37.0 | 12 | 20.3 | ||
| Overhead projector | 2 (2.3) | 1 | 3.7 | 1 | 1.7 | ||
| Newspaper | 1 (1.2) | 0 | 0.0 | 1 | 1.7 | ||
| Novels | 0 (0.0) | 0 | 0.0 | 0 | 0.0 | ||