TABLE 1.
Food item | Those who ate | Number ill | Attack rate (%) | Those who did not eat | Number ill | Attack rate (%) | Diff in attack rate | X2 |
---|---|---|---|---|---|---|---|---|
Rice (Pulao) | 102 | 77 | 75.5 | 1 | 1 | 100 | (+) 24.5 | |
Puri | 41 | 24 | 58.5 | 62 | 54 | 87 | (+) 28.5 | |
Chicken | 96 | 78 | 81.2 | 7 | 1 | 14.4 | 66.8 | 12.48* |
Egg curry | 87 | 66 | 74.7 | 16 | 9 | 56.2 | 18.5 | 1.64 |
Vegetables (tinned) | 56 | 46 | 82 | 47 | 29 | 61.6 | 20.11 | 4.33** |
Potatoes | 54 | 41 | 75.9 | 49 | 34 | 69.3 | 6.6 | 0.25 |
Dal | 94 | 67 | 71.3 | 9 | 7 | 77.8 | (+) 6.5 | |
Papad | 101 | 76 | 75.3 | 2 | 2 | 100 | (+) 24.7 | |
Kheer | 75 | 58 | 77.3 | 28 | 20 | 71.4 | 5.9 | 0.12 |
Rasgulla | 72 | 55 | 76.4 | 31 | 23 | 74.2 | 2.2 | 0.0012 |
Other sweet | 75 | 51 | 68 | 28 | 17 | 60.7 | 7.3 | 0.48 |
X2 (with Yates correction) = 12.48 (p < 0.01)
X2 = 4.33 (p < 0.05)