TableĀ 4

Occurrence and severity of headache by sodium level and diet, n (%)

Level of sodium
HighIntermediateLow
DASH (n=198)Control (n=192)DASH (n=198)Control (n=192)DASH (n=198)Control (n=192)
Mild60 (30)70 (36)43 (22)62 (32)53 (27)53 (28)
Moderate17 (9)17 (9)31 (16)16 (8)16 (8)21 (11)
Severe8 (4)4 (2)2 (1)1 (0.5)3 (1)1 (0.5)