Univariate analysis | Final binary regression model | |||||
---|---|---|---|---|---|---|
# | No diarrhoea (n=1144) | Diarrhoea (834) | p Value | OR (95% CI) | p Value | |
Gender | ||||||
Male | 1847 | 1045 (57) | 802 (43) | 2.05 (1.30 to 3.22) | 0.002 | |
Female | 121 | 92 (76) | 29 (24) | <0.001* | 1 | |
Subject age (years) | ||||||
<20 | 193 | 104 (54) | 89 (46) | |||
20–25 | 783 | 435 (56) | 348 (44) | |||
26–30 | 437 | 256 (59) | 181 (41) | 0.004† | ||
31–40 | 454 | 268 (59) | 186 (41) | |||
41–50 | 84 | 59 (70) | 25 (30) | |||
>50 | 15 | 12 (80) | 3 (20) | |||
Prior appendicectomy | ||||||
No | 1808 | 1051 (58) | 757 (42) | |||
Yes | 130 | 65 (50) | 65 (50) | 0.07* | ||
History of bowel disease | ||||||
No | 1876 | 1087 (58) | 789 (42) | 1 | ||
Yes | 36 | 12 (33) | 24 (67) | 0.003* | 2.62 (1.20 to 5.70) | 0.015 |
Smoking | ||||||
No | 1090 | 648 (59) | 442 (41) | |||
Yes | 853 | 472 (55) | 381 (45) | 0.068* | ||
Rank | ||||||
Private | 837 | 473 (57) | 364 (43) | |||
JNCO | 664 | 391 (59) | 273 (41) | |||
SNCO | 214 | 132 (62) | 82 (38) | 0.69* | ||
WO | 56 | 30 (54) | 26 (46) | |||
Officer | 167 | 97 (58) | 70 (42) | |||
Field officer | 40 | 21 (53) | 19 (47) | |||
History of insect bites | ||||||
No | 418 | 294 (70) | 124 (30) | 1 | ||
Yes | 1517 | 822 (54) | 695 (46) | <0.001* | 1.40 (1.08 to 1.80) | 0.01 |
Use of antimalarials | ||||||
No | 818 | 552 (68) | 266 (32) | 1 | ||
Yes | 1118 | 563 (50) | 555 (50) | <0.001* | 1.86 (1.52 to 2.27) | <0.001 |
Uncertified water | ||||||
No | 1432 | 890 (62) | 542 (38) | 1 | ||
Yes | 499 | 220 (44) | 279 (56) | <0.001* | 1.53 (1.20 to 1.94) | <0.001 |
Local food | ||||||
No | 1211 | 760 (63) | 451 (37) | |||
Yes | 711 | 346 (49) | 365 (51) | <0.001* | ||
Patrolling through water | ||||||
No | 1004 | 668 (67) | 336 (33) | <0.001* | 1 | |
Yes | 930 | 443 (48) | 487 (52) | 1.52 (1.23 to 1.88) | <0.001 |
Statistical Package for the Social Sciences (Chicago, Illinois, USA).
*χ2 Test.
†χ2 Test for trend.
JNCO, junior non-commissioned officer; SNCO, senior non-commissioned officer; WO, warrant officer.