Table 5 Use of interventions by cases and controls with results of multiple logistic regression in groups by theme shown with area under the ROC curve for each group
From: Risk factors for malaria in high incidence areas of Viet Nam: a case–control study
Theme | Variable | Cases | Controls | OR | p value |
|---|---|---|---|---|---|
Malaria history | How long been unwell (days)* | 3 (2–4) | 1 (0–2) | 2.576 (2.346–2.841) | < 0.0001 |
Had recorded fever | 143 (14.3%) | 47 (4.7%) | 2.172 (1.480–3.231) | < 0.0001 | |
Times had malaria in past 1 year* | 0 (0–1) | 0 (0–0) | 3.779 (2.873–5.031) | < 0.0001 | |
Times people in your house | 0 (0–0) | 0 (0–0) | 0.9848 (0.8096–1.196) | 0.8776 | |
had malaria in past year* | |||||
Area under ROC | 0.8395 (0.8225–0.8565) | < 0.0001 | |||
Treatment | Had prior treatment | 366 (36.6%) | 106 (10.6%) | 4.869 (3.847–6.206) | < 0.0001 |
Finished treatment | 350 (95.6%) | 99 (93.4%) | |||
Vomited treatment | 36 (9.8%) | 19 (17.9%) | |||
Area under ROC | 0.63 (0.6056–0.6544) | < 0.0001 | |||
Prior healthcare | Government health center | 104 (10.4%) | 36 (3.6%) | 3.748 (2.536–5.654) | < 0.0001 |
for this illness | Any medical care | 368 (36.8%) | 212 (21.2%) | 0.9816 (0.4626–1.984) | 0.9597 |
Government hospital | 10 (1.0%) | 2 (0.2%) | 5.744 (1.287–41.41) | 0.0394 | |
Pharmacy | 310 (31.0%) | 184 (18.4%) | 2.38 (1.171–5.089) | 0.0197 | |
Private clinic | 54 (5.4%) | 13 (1.3%) | 5.66 (2.322–14.76) | 0.0002 | |
Area under ROC | 0.6283 (0.6039–0.6526) | < 0.0001 | |||
LLIN | Household has LLIN | 908 (90.8%) | 911 (91.1%) | ||
Per person* | 1 (1–1) | 1 (1–1) | 0.2143 (0.06193–0.6692) | 0.0102 | |
Use | 729 (80.0%) | 911 (92.4%) | |||
Age (months)* | 7 (6–12) | 10 (6–15.5) | 0.9748 (0.9628–0.9865) | < 0.0001 | |
Last treated (months)* | 6 (6–11) | 8 (6–12) | 0.9935 (0.9832–1.003) | 0.2067 | |
Has holes | 10 (1.1%) | 6 (0.7%) | 2.321 (0.8358–7.007) | 0.1133 | |
Area under ROC | 0.6042 (0.5752–0.6332) | < 0.0001 | |||
House | Size* | 5 (4–6) | 5 (4–6) | 0.9302 (0.8764–0.9837) | 0.0162 |
Sealed to mosquitoes | 8 (0.9%) | 7 (0.7%) | 1.199 (0.4280–3.437) | 0.7274 | |
Have AC | 6 (0.6%) | 11 (1.1%) | 0.5445 (0.1864–1.442) | 0.2344 | |
Area under ROC | 0.5439 (0.5178–0.5701) | 0.0011 | |||
Personal | Use coil | 152 (15.2%) | 173 (17.3%) | 2.392 (1.763–3.265) | < 0.0001 |
protection | Use repellent | 198 (19.8%) | 382 (38.2%) | 0.622 (0.4682–0.8260) | 0.001 |
Use plug-in | 181 (18.1%) | 425 (42.5%) | 0.2842 (0.2138–0.3753) | < 0.0001 | |
Area under ROC | 0.6347 (0.6103–0.6591) | < 0.0001 | |||
Use LLIN | 0.4308 (0.3195–0.576) | < 0.0001 | |||
Use coil | 2.396 (1.758–3.283) | < 0.0001 | |||
Use repellent | 0.7364 (0.5514–0.9836) | 0.0381 | |||
Use plug-in | 0.305 (0.2281–0.4051) | < 0.0001 | |||
Area under ROC | 0.656 (0.6318–0.6803) | < 0.0001 |