Table 2. Relationship between healthcare workers and COVID-19 serological status (IgM and/or IgG) in Bangui, April 2021 (survey 1) and May 2022 (survey 2).
| Characteristics | Survey 1 (N = 179) | Survey 2: (N = 141) | OR* | [95%IC] | P-value | ||
|---|---|---|---|---|---|---|---|
| Positive IgM and/or IgG: n (%) | Negative IgM and/or IgG: n (%) | Positive IgM and/or IgG: n (%) | Negative IgM and/or IgG: n (%) | ||||
| Gender | |||||||
| Male | 20 (40.8) | 29 (59.2) | 50 (96.2) | Ref. | |||
| Female | 45 (34.6) | 85 (65.4) | 85 (95.5) | 0.75 | [0.40–1.42] | 0.38 | |
| Age category (years) | |||||||
| ≤30 | 14 (70.0) | 6 (30.0) | 21 (91.1) | 2 (8.7) | Ref. | ||
| 31 à 40 | 31 (58,5) | 22 (41,5) | 36 (94,7) | 2 (5,3) | 0,77 | [0.34–1.77] | 0,54 |
| 41 à 50 | 38 (66,7) | 19 (33,3) | 50 (96,2) | 2 (3,8) | 1,07 | [0.48–2.42] | 0,86 |
| > 50 | 31 (63,3) | 18 (45,0) | 28 (100,0) | 0 (0,0) | 0,60 | [0.26–1.40] | 0,24 |
| Hospital | |||||||
| CHUPB | 22 (55.0) | 18 (45.0) | - | - | NA | ||
| CHUMED | - | - | 41 (91.1) | 4 (8.9) | NA | ||
| CHUC | 49 (58.5) | 34 (41.5) | 35 (100.0) | 0 (0.0) | Ref. | ||
| CHUASC | 44 (77.2) | 13 (22.8) | 59 (96.7) | 2 (3.3) | 1.83 | [1.02–3.3] | 0.041 |
| HCWs occupation | |||||||
| Close contact staff with patients | 27 (30.0) | 63 (70.0) | 85 (96.6) | 3 (3.3) | 2.30 | [1.3–4.3] | 0.005 |
| Support staff | 38 (42.7) | 51 (57.3) | 51 (96.2) | 2 (3.8) | |||
*OR, odds ratio calculated by comparing IgM and/or IgG positive serological status between the first and second survey according to occupation of the HCWs. Significant values are shown in bold. CHUPB, Pediatric University Hospital of Bangui; CHUMED, Centre Hospitalier Universitaire Maman Elisabeth Domitien; CHUC, Community University Hospital; CHUASC, the University Hospital of the Sino-Central African Friendship