Table 2 Cholera risk factors, Angau General Hospital, Papua New Guinea, 2010
Risk Factor | Cases n=54 | Controls n=122 | Odds ratio | Confidence interval | p value | Adjusted odds ratio | Confidence interval | p value | ||
|---|---|---|---|---|---|---|---|---|---|---|
n | (%) | n | (%) | (OR) | (95%CI) | (aOR) | (95%CI) | |||
Over 20 years of age | 17 | (32) | 65 | (53) | 2.4 | (1.2, 5.2) | 0.007 | 2.7 | (1.2, 5.8) | 0.012 |
Resides in an informal settlement | 44 | (82) | 70 | (57) | 3.2 | (1.4, 7.9) | 0.002 | NA | NA | NA |
River as drinking water source | 25 | (46) | 31 | (25) | 2.5 | (1.2, 5.2) | 0.006 | NA | NA | NA |
Defecates in open air (or river) | 13 | (24) | 5 | (4) | 7.4 | (2.3, 27.9) | 0.0001 | 4.6 | (1.4, 14.9) | 0.011 |
Has soap for hand washing at home | 18 | (33) | 66 | (54) | 0.42 | (0.20 0.87) | 0.01 | 0.41 | (0.19, 0.87) | 0.021 |
Chews betel nut | 30 | (75) | 43 | (63) | 1.74 | (0.68, 4.67) | 0.2 | NA | NA | NA |
Washes hands before eating | 17 | (32) | 54 | (49) | 0.48 | (0.23, 1.01) | 0.035 | NA | NA | NA |
Knows case of cholera | 16 | (30) | 11 | (9) | 4.3 | (1.7, 11.0) | 0.0005 | 2.4 | (0.9, 6.2) | 0.075 |
Attended funeral | 5 | (9) | 12 | (10) | 0.93 | (0.24, 3.02) | 0.9 | NA | NA | NA |
Knows someone who travelled to cholera area | 47 | (87) | 68 | (56) | 5.3 | (2.2, 15.0) | 0.0001 | 4.5 | (1.8, 11.7) | 0.002 |
Shares housing with diarrhoea case | 11 | (20) | 6 | (5) | 5.0 | (1.6, 17.2) | 0.001 | NA | NA | NA |