Table 3.
Bivariate and multivariable analysis of factors associated with malaria infection among asymptomatic migrant laborers in the West Armachiho district, Northwest Ethiopia (N=385)
| Risk factors | Malaria
|
OR (95% CI)
|
P-value | |||
|---|---|---|---|---|---|---|
| Positive (%) | Negative (%) | COR | AOR | |||
| Age group (years) | 15–29 | 57 (20.4) | 222 (79.6) | 1.00 | 1.00 | |
| 30–44 | 8 (9.2) | 79 (90.8) | 0.39 (0.18, .86) | 0.41 (0.16, 1.06) | 0.07 | |
| ≥45 | 6 (31.6) | 13 (68.4) | 1.80 (0.66, 4.94) | 1.65 (0.47, 5.76) | 0.43 | |
| Educational level | Illiterate | 20 (48.8) | 21 (51.2) | 6.58 (2.73, 15.9) | 8.22 (2.85, 23.75) | 0.00 |
| Read and write | 24 (16.2) | 124 (83.8) | 1.34 (0.62, 2.88) | 2.13 (0.87, 5.23) | 0.099 | |
| Elementary school | 16 (14.7) | 93 (85.3) | 1.19 (0.52, 2.71) | 1.11 (0.44, 2.80) | 0.82 | |
| High school and above | 11 (12.6) | 76 (87.4) | 1.00 | 1.00 | ||
| Residence | Resident | 21 (11.7) | 159 (88.3) | 1.00 | 1.00 | |
| Migrant | 50 (24.4) | 155 (75.6) | 2.44 (1.40, 4.26) | 0.82 (0.39, 1.74) | 0.60 | |
| Origin/home area | Highland | 47 (24.7) | 143 (75.3) | 2.34 (1.37, 4.02) | 2.34 (1.24, 4.42) | 0.009 |
| Lowland | 24 (12.3) | 171 (87.7) | 1.00 | 1.00 | ||
| Number of visits to study area | First | 11 (13.8) | 69 (86.2) | 1.00 | 1.00 | |
| Second | 10 (40) | 15 (60) | 4.18 (1.50, 11.62) | 7.69 (2.23, 26.60) | 0.001 | |
| Third | 18 (35.3) | 33 (64.7) | 3.42 (1.45, 8.06) | 5.49 (1.98, 15.18) | 0.001 | |
| Fourth or more | 32 (14) | 197 (86) | 1.02 (0.49, 2.13) | 1.56 (0.65, 3.77) | 0.32 | |
| Outdoor sleeping | Yes | 62 (22.5) | 214 (77.5) | 3.22 (1.54, 6.74) | 2.76 (1.19, 6.43) | 0.018 |
| No | 9 (8.3) | 100 (91.7) | 1.00 | 1.00 | ||
| Utilization of bed net | Yes | 18 (9.7) | 167 (90.3) | 1.00 | 1.00 | |
| No | 53 (26.5) | 147 (73.5) | 3.35 (1.88, 5.97) | 2.57 (1.28, 5.18) | 0.008 | |
Abbreviations: AOR, adjusted odds ratio; COR, crude odds ratio; OR, odds ratio.