Table 6 Plasmodium vivax infection incidence rates per 1000 person-months by individual and household level factors in Arjo-Didessa Southwestern, Ethiopia, November 2019–October 2021
Factors | Variables | Index HHs | Neighboring HHs | Control HHs | |||
|---|---|---|---|---|---|---|---|
PCR + /Person-months | IR Per 1000 person-months | PCR + / Person-months | IR Per 1000 person-months | PCR +  Person-months | IR Per 1000 person-months | ||
Gender | Male | (10/138) | 72.4 | (23/432) | 50.9 | (8/341) | 23.4 |
| Â | Female | (5/140.5) | 35.6 | (18/501) | 35.9 | (11/415.5) | 26.4 |
Age (years), n (%) |  > 15 | (2/152) | 13.1 | (24/547) | 43.8 | (7/405.5) | 17.2 |
|  | 5–15 | (8/89) | 89.8 | (10/244.5) | 44.9 | (8/255) | 31.3 |
|  |  < 5 | (5/37.5) | 133.4 | (6/138.5) | 43.3 | (4/98) | 40.8 |
Vector breeding sites |  > 500 m | (2/92) | 21.7 | (13/398.5) | 32.7 | (6/309) | 19.4 |
|  | 200–500 m | (11/128.5) | 85.4 | (19/394.5) | 48.1 | (11/372.5) | 29.5 |
|  |  < 200 m | (2/58) | 34.5 | (8/141.5) | 56.5 | (2/75) | 26.6 |
ITN usage | Yes | (5/123.5) | 40.4 | (19/446.5) | 42.5 | (7/312.5) | 22.4 |
| Â | No | (10/144) | 69.4 | (21/507.5) | 41.3 | (12/446) | 27.0 |
Openings /eaves | Yes | (13/228.5) | 56.9 | (34/708.5) | 47.9 | (15/273.5) | 54.8 |
| Â | No | (2/50) | 40.0 | (6/231) | 35.9 | (4/283) | 14.1 |
IRS in the study year | Yes | (2/102) | 19.6 | (11/366.5) | 30.0 | (3/193.5) | 15.5 |
| Â | No | (13/176.5) | 73.6 | (29/567.5) | 51.1 | (16/463) | 34.5 |
Season | Dry | (9/209.5) | 42.9 | (26/733) | 35.4 | (10/500) | 20.0 |
| Â | Wet | (6/69) | 86.9 | (14/200.5) | 69.8 | (9/148.5) | 60. 6 |