Region

Age category (months)

Overall,

n (%)

Central n (%)

Eastern n (%)

6 - 11

n (%)

12 - 23

n (%)

N=

427

242

185

158

269

% of children with DDS < 4

94 (22)

56 (23)

39 (21)

47 (30)

46 (17)

% of children with DDS > 4

333 (78)

186 (77)

146 (79)

111 (70)

223 (83)