Age group (years)

Reactive (n = 473)

n (%)

Non-reactive (n = 6401)

n (%)

Total (n = 6874)

n (%)

P^*

0-17

Male

Female

 22 (4.7)

16 (3.4)

320 (5.0)

289 (4.5)

342 (5.0)

305 (4.4)

0.522

18-25

Male

 Female

36 (7.6)

25 (5.3)

578 (9.0)

601 (9.4)

614 (8.9)

626 (9.1)

0.128

26-45

Male

Female

113 (23.9)

70 (14.8)

1962 (30.7)

1203 (18.8)

 2075 (30.2)

 1275 (18.5)

0.804

46-55

Male

Female

 60 (12.7)

 19 (4.0)

410 (6.4)

211 (3.3)

458 (6.7)

225 (3.3)

0.069

56-65

Male

Female

32 (6.8)

 17 (3.6)

245 (3.8)

110 (1.7)

277 (4.0)

127 (1.8)

0.600

> 65

Male

Female

 29 (6.1)

 19 (4.0)

147 (2.3)

69 (1.1)

 176 (2.6)

88 (1.3)

0.310