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Table 1 Demographic and key MSAP characteristics for students in rural KwaZulu-Natal, South Africa

From: Who is sexually active? Using a multi-component sexual activity profile (MSAP) to explore, identify and describe sexually-active high-school students in rural KwaZulu-Natal, South Africa

Sample Group

Variable

unAdj Male %

Adj%a

unAdj Female %

Adj% a

Adjusted P

Overall (N = 2675)

 

N = 1252

N = 1423

 

Median Age

 

17 years (IQR 16–18)

 

16 years (IQR 15–17)

–

 

Age Range

 

12–28 years

 

13–24 years

–

 

Age

< 15

23.7 (297/1252)

25.6

41.5 (591/1423)

41.6

0.002

16–17

40.3 (505/1252)

40.4

37.7 (537/1423)

37.5

0.383

18–19

27.5 (344/1252)

26

14.9 (212/1423)

14.8

0.005

> 20

8.5 (106/1252)

8.0

5.8 (83/1423)

6.1

0.518

HIV Prev

 

1.4 (18/1252)

1.4

6.2 (88/1423)

6.4

< 0.001

HSV-2 Prev

 

3.0 (38/1252)

2.6

10.4 (148/1423)

10.7

< 0.001

Pregnancy Prev

 

Not applicable

 

3.5 (49/1412)

3.6

Not applicable

Prev Reported Preg/made pregnant

 

3.1 (38/1225)

3.3

10.5 (147/1405)

10.9

0.001

STI symptom

 

11.4 (141/1234)

12.6

7.8 (110/1402)

8.4

0.056

Sexually Active

 

50.0 (619/1239)

48.5

31.8 (447/1406)

31.9

0.001

Self-report sexually active (N = 1066)

 

N = 619

N = 447

 

Median Age

 

17 (IQR 16–19)

 

17 (IQR 16–19)

  

Age Range

 

12–28 years

 

13–23 years

 

–

Age

< 15

15.2 (94/619)

17.4

18.8 (84/447)

19.5

0.612

16–17

36.8 (228/619)

38.6

42.1 (188/447)

43.5

0.235

18–19

36.7 (227/619)

34.0

25.7 (115/447)

24.5

0.049

> 20

11.3 (70/619)

10.0

13.4 (60/447)

12.5

0.518

HIV Prev

 

1.6 (10/619)

1.8

11.4 (51/447)

10.5

< 0.001

HSV-2 Prev

 

3.9 (24/619)

3.6

21.0 (94/447)

21.0

< 0.001

Pregnancy

 

Not applicable

–

6.3 (28/444)

6.2

Not applicable

Prev Reported Preg/made pregnantb

 

49.3 (36/73)

52.4

95.7 (134/140)

95.0

< 0.001

STI symptom

 

14.5 (89/614)

17.3

13.5 (60/444)

14.4

0.455

Self-report not sexually active (N = 1579)

 

N = 620

N = 959

 

Median Age

 

16 (IQR 15–17)

 

15 (IQR: 15–16)

  

Age Range

 

13–25 years

 

13–24 years

  

Age

< 15

32.1 (199/620)

32.8

52.2 (501/959)

51.9

0.001

16–17

44.2 (274/620)

43.1

35.8 (343/959)

35.3

0.076

18–19

18.2 (113/620)

18.0

9.6 (92/959)

9.9

0.021

> 20

5.5 (34/620)

6.1

2.4 (23/959)

2.9

0.274

HIV Prev

 

1.3 (8/620)

1.3

3.9 (37/959)

4.2

0.001

HSV-2 Prev

 

2.3 (14/620)

1.9

5.6 (54/959)

5.7

0.001

Pregnancy

 

Not applicable

 

2.2 (21/951)

2.5

Not applicable

Prev Reported Preg/made pregnant

 

0.3 (2/613)

0.5

1.4 (13/952)

1.9

0.068

STI symptom

 

8.5 (52/615)

9.3

5.3 (50/950)

6.0

0.125

  1. Significant p-values ( ≤ 0.05) are set in bold
  2. aAdjusted measures were calculated based on the cluster (school)-level summaries appropriate for school-based sampling
  3. b Percentage was calculated with regard to available data. Should be interpreted with caution as the denominator changed to 73 and 140 for male and females that self-reported as sexually active
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BMC Public Health

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