Age (years)

Cases

Percentage

Controls

Percentage

15 - 19

26

9.6

109

20.0

20 - 24

61

22.4

90

16.5

25 - 29

87

32.0

181

33.3

30 - 34

63

23.2

95

17.5

35 - 39

27

9.9

52

9.6

40 and above

8

2.9

17

3.1

Total

272

100.0

544

100.0