Table 4.
Characteristic | n | Presence of goitre | P-value* | |||||
---|---|---|---|---|---|---|---|---|
Overall, n 575† | No, n 329† | Yes, n 246† | ||||||
n | % | n | % | n | % | |||
Dietary goitrogens | ||||||||
Sorghum | 575 | 0·3 | ||||||
Once per day | 354 | 61·6 | 198 | 60·2 | 156 | 63·4 | ||
1–3 times per week | 189 | 32·9 | 107 | 32·5 | 82 | 33·3 | ||
Once per month | 16 | 2·8 | 13 | 4·0 | 3 | 1·2 | ||
Rarely | 11 | 1·9 | 7 | 2·1 | 4 | 1·6 | ||
Never | 5 | 0·9 | 4 | 1·2 | 1 | 0·4 | ||
Millet | 575 | 0·2 | ||||||
Once per day | 11 | 1·9 | 5 | 1·5 | 6 | 2·4 | ||
1–3 times per week | 80 | 13·9 | 40 | 12·2 | 40 | 16·3 | ||
Once per month | 64 | 11·1 | 41 | 12·5 | 23 | 9·3 | ||
Rarely | 176 | 30·6 | 94 | 28·6 | 82 | 33·3 | ||
Never | 244 | 42·4 | 149 | 45·3 | 95 | 38·6 | ||
Cassava | 575 | 0·8 | ||||||
Once per day | 5 | 0·9 | 3 | 0·9 | 2 | 0·8 | ||
1–3 times per week | 24 | 4·2 | 12 | 3·6 | 12 | 4·9 | ||
Once per month | 25 | 4·3 | 14 | 4·3 | 11 | 4·5 | ||
Rarely | 56 | 9·7 | 36 | 10·9 | 20 | 8·1 | ||
Never | 465 | 80·9 | 264 | 80·2 | 201 | 81·7 | ||
Onion | 575 | 0·05 | ||||||
Once per day | 524 | 91·1 | 290 | 88·1 | 234 | 95·1 | ||
1–3 times per week | 36 | 6·3 | 28 | 8·5 | 8 | 3·3 | ||
Once per month | 4 | 0·7 | 3 | 0·9 | 1 | 0·4 | ||
Rarely | 5 | 0·9 | 4 | 1·2 | 1 | 0·4 | ||
Never | 6 | 1·0 | 4 | 1·2 | 2 | 0·8 | ||
Maize | 575 | 0·021 | ||||||
Once per day | 108 | 18·8 | 57 | 17·3 | 51 | 20·7 | ||
1–3 times per week | 103 | 17·9 | 61 | 18·5 | 42 | 17·1 | ||
Once per month | 39 | 6·8 | 27 | 8·2 | 12 | 4·9 | ||
Rarely | 297 | 51·7 | 161 | 48·9 | 136 | 55·3 | ||
Never | 28 | 4·9 | 23 | 7·0 | 5 | 2·0 | ||
Sweet potato | 575 | <0·001 | ||||||
Once per day | 7 | 1·2 | 2 | 0·6 | 5 | 2·0 | ||
1–3 times per week | 285 | 49·6 | 141 | 42·9 | 144 | 58·5 | ||
Once per month | 107 | 18·6 | 74 | 22·5 | 33 | 13·4 | ||
Rarely | 101 | 17·6 | 67 | 20·4 | 34 | 13·8 | ||
Never | 75 | 13·0 | 45 | 13·7 | 30 | 12·2 | ||
Lima beans | 575 | 0·5 | ||||||
Once per day | 9 | 1·6 | 5 | 1·5 | 4 | 1·6 | ||
1–3 times per week | 195 | 33·9 | 105 | 31·9 | 90 | 36·6 | ||
Once per month | 117 | 20·3 | 64 | 19·5 | 53 | 21·5 | ||
Rarely | 115 | 20·0 | 67 | 20·4 | 48 | 19·5 | ||
Never | 139 | 24·2 | 88 | 26·7 | 51 | 20·7 | ||
Pumpkin | 575 | 0·5 | ||||||
Once per day | 14 | 2·4 | 8 | 2·4 | 6 | 2·4 | ||
1–3 times per week | 58 | 10·1 | 31 | 9·4 | 27 | 11·0 | ||
Once per month | 36 | 6·3 | 24 | 7·3 | 12 | 4·9 | ||
Rarely | 375 | 65·2 | 208 | 63·2 | 167 | 67·9 | ||
Never | 92 | 16·0 | 58 | 17·6 | 34 | 13·8 |
Pearson’s χ 2 test; Fisher’s exact test.
n (%).
Boldface was used for the statistically significant P-values.