Table 1.
Distribution of gastrointestinal symptomsa
| Complaints | Day Worker | Shift Workers | Total | PV | |
|---|---|---|---|---|---|
| Diarrhea | positive | 3(11) | 28(21) | 31(19) | 0.2 |
| negative | 24(89) | 105(79) | 129(81) | ||
| Constipation | positive | 10(37) | 50(37) | 60(37) | 0.9 |
| negative | 17(63) | 83(63) | 100(63) | ||
| Bloating | positive | 9(33) | 70(52) | 79(49) | 0.06 |
| negative | 18(67) | 63(48) | 81(51) | ||
| Regurgitation | positive | 13(48) | 71(53) | 84(52) | 0.6 |
| negative | 14(52) | 62(47) | 76(48) | ||
| Heart-Burn | positive | 8(29) | 55(41) | 63(39) | 0.25 |
| negative | 19(71) | 78(59) | 97(61) | ||
| Melena | positive | 0(0) | 3(2) | 3(2) | 1 |
| negative | 17(100) | 130(98) | 157(98) |
a Entries are number of workers. Percentage of total workers is indicated in parenthesis. P-values was calculated by χ2 and Fisher exact test, as appropriate