Table 2.
Pre-, mid-, and postquestionnaire results by category of items
| Category of items | Pre–Post |
Pre (n = 32) |
Mid (n = 30) |
Post (n = 24) |
Pre–mid |
Mid–post |
|---|---|---|---|---|---|---|
| Z score (p)∗ | μ (SD) (%) | μ (SD) (%) | μ (SD) (%) | Z score(p) | Z score (p) | |
| Main categories | ||||||
| Knowledge | 3.1 (0.002) | 67.8 (14.6) | 86.5 (9.5) | 79.7 (9.6) | 4.5 (<0.001) | −3.2 (0.002) |
| Skills/practice | 3.6 (<0.001) | 57.0 (2.3) | 76.3 (11.6) | 71.4 (12.4) | 4.6 (<0.001) | −2.6 (0.008) |
| Attitudes | 0.1 (0.930) | 84.9 (1.6) | 85.8 (8.9) | 81.5 (12.3) | 1.2 (0.240) | −1.8 (0.079) |
| True/False | 1.9 (0.054) | 68.0 (18.2) | 85.4 (18.9) | 74.5 (17.9) | 3.7 (<0.001) | −2.2 (0.028) |
| Subcategories | ||||||
| Occupational health/infection control | 2.0 (0.050) | 72.8 (17.9) | 87.2 (12.1) | 81.7 (9.3) | 4.0 (<0.001) | −2.9 (0.004) |
| HIV | 2.5 (0.013) | 82.3 (14.6) | 93.3 (9.3) | 91.1 (12.4) | 3.4 (0.001) | −1.1 (0.270) |
| Tuberculosis | 2.9 (0.004) | 68.9 (19.4) | 90.5 (10.2) | 82.7 (15.3) | 4.4 (<0.001) | −2.6 (0.010) |
| HIV/TB Co-infection | 2.7 (0.007) | 67.5 (23.7) | 92.7 (9.8) | 81.7 (18.6) | 4.1 (<0.001) | −2.7 (0.007) |
| Occupational policies, procedures and guidelines | 3.2 (0.002) | 59.2 (18.6) | 81.5 (13.7) | 71.3 (13.2) | 4.5 (<0.001) | −3.0 (0.002) |
| Research/program implementation | 3.8 (<0.001) | 52.5 (14.9) | 73.7 (13.1) | 69.4 (13.2) | 4.7 (<0.001) | −1.9 (0.063) |
HIV, human immunodeficiency virus; SD, standard deviation; TB, tuberculosis.
∗
Z scores and p values are the result of the Wilcoxon-signed rank test.