TABLE 2.
Factors associated with a false-positive SARS-CoV-2 antibody response in samples from Uganda
| Defining category | SARS-CoV-2 antibody-positive outcome |
|
|---|---|---|
| % (no./total) | PR (95% CI) | |
| Sex | ||
| Female | 2.7 (20/737) | Reference |
| Male | 5.3 (18/340) | 2.06 (1.03 to 3.69) |
| Age | ||
| 18–24 | 3.1 (10/327) | Reference |
| 25–34 | 4.3 (19/439) | 1.42 (0.66 to 3.04) |
| 35–44 | 2.7 (7/260) | 0.88 (0.34 to 2.31) |
| 45–54 | 3.9 (2/61) | 1.28 (0.28 to 5.85) |
| Community type | ||
| Agrarian | 3.2 (14/436) | Reference |
| Fishing | 5.1 (19/372) | 1.59 (0.80 to 3.17) |
| Trading | 1.9 (5/269) | 0.58 (0.21 to 1.61) |
| Pregnancy (no males in analysis) | ||
| Not pregnant | 2.5 (8/318) | Reference |
| Pregnant | 2.9 (12/419) | 1.14 (0.47 to 2.78) |
| Fever < 1 mo | ||
| No | 3.2 (17/534) | Reference |
| Yes | 3.9 (21/543) | 1.21 (0.64 to 2.30) |
| Fever > 1 mo | ||
| No | 3.2 (33/1,023) | Reference |
| Yes | 9.3 (5/54) | 2.87 (1.12 to 7.35) |
| Cough | ||
| No | 3.3 (27/825) | Reference |
| Yes | 4.4 (11/252) | 1.33 (0.66 to 2.69) |
| Pneumonia | ||
| No | 3.2 (32/997) | Reference |
| Yes | 7.5 (6/80) | 2.34 (0.98 to 5.59) |
| HIV status | ||
| Negative | 3.4 (21/618) | Reference |
| Positive | 3.7 (17/459) | 1.09 (0.58 to 2.07) |