W.H.O.M.N.S.V.D. (1975-78)

ICMR (1986-89)

14 Countries

9 Centres

(Delhi Centre)

Duration (Yrs)

0-6

7 - 13

≥4

Duration (yrs)

0 - 6

7 - 13

≥14

M(n-289)

9.3

10.7

23.0

M (n = 262)

12.2

18.0

22.5

F(n-266)

4.2

5.7

13.6

F (n = 245)

5.3

8.7

7.5