Table 3 The stratification of the individuals reported as perpetrators (other student/supervisor or teacher/medical doctor/ nurse or other medical personnel) of sexual harassments. The medical students from the primary cohort (2002) and the revision cohort (2013) were stratified by pre-clinical and clinical semester and gender (females/males). Prevalence (percent) of the medical students who answered ‘yes’ to this question (weighted to represent the total population of medical students during 2002 and 2013, respectively). Ratios presented are the prevalence in 2013 divided by the prevalence in 2002, with corresponding 95% confidence intervals. A ratio > 1 indicates that the condition has an increased prevalence in 2013. The p-values result from tests where the null hypotheses are that the ratios are the same between the females and the males

Pre-clinical

Female

2002 (percent)

25.2

41.2

22.0

48.2

4.2

8.6

4.2

4.2

2013 (percent)

28.6

37.9

23.1

29.3

11.4

14.1

7.9

7.5

Ratio (2013/2002)

1.14 (0.85–1.52)

0.92 (0.77–1.09)

1.05 (0.78–1.41)

0.61 (0.55–0.68)

2.70 (0.48–15.06)

1.65 (0.75–3.60)

1.86 (0.55–6.30)

1.78 (0.55–5.70)

Male

2002 (percent)

36.4

44.0

14.9

19.2

4.7

4.7

5.6

4.2

2013 (percent)

21.1

21.8

14.4

12.2

6.2

6.8

2.4

1.8

Ratio (2013/2002)

0.58 (0.49–0.69)

0.50 (0.44–0.56)

0.97 (0.59–1.57)

0.64 (0.48–0.85)

1.33 (0.44–4.04)

1.46 (0.44–4.86)

0.44 (0.29–0.65)

0.44 (0.27–0.70)

p-value

0.001

< 0.001

0.766

0.862

0.191

0.796

0.029

0.037

Clinical

Female

2002 (percent)

40.9

54.3

56.3

73.0

51.6

62.3

42.8

38.5

2013 (percent)

44.0

55.4

39.8

52.1

56.7

74.8

40.1

40.7

Ratio (2013/2002)

1.08 (0.88–1.32)

1.02 (0.88–1.18)

0.71 (0.64–0.79)

0.71 (0.66–0.77)

1.10 (0.93–1.29)

1.20 (1.04–1.38)

0.94 (0.79–1.11)

1.06 (0.86–1.29)

Male

2002 (percent)

47.5

46.3

42.2

48.2

37.7

42.5

31.5

23.9

2013 (percent)

40.8

46.9

32.1

34.0

48.3

50.7

35.9

30.4

Ratio (2013/2002)

0.86 (0.72–1.03)

1.01 (0.82–1.25)

0.76 (0.64–0.91)

0.71 (0.61–0.82)

1.28 (0.95–1.72)

1.19 (0.93–1.54)

1.14 (0.84–1.56)

1.27 (0.85–1.92)

p-value

0.113

0.951

0.615

0.921

0.290

0.955

0.256

0.351