Table 4.
Characteristics associated to Covid-19 laboratory-confirmed cases, 1stMarch to 5th October 2020, Cameroon (univariate and multivariate analysis)
| Laboratory-confirmed Covid-19 cases (PCR test) |
||||||
|---|---|---|---|---|---|---|
| Characteristics | N=85 206 | (n=14 863) | OR (95%CI)* | p | aOR (95%CI)* | p |
| Period of diagnosis** | <0.001 | |||||
| September | 19 602 | 972 (5.0) | 0.14 (0.13-0.15) | |||
| August | 14 226 | 906 (6.4) | 0.18 (0.17-0.20) | |||
| July | 7 754 | 1 489 (19.2) | 0.64 (0.61-0.69) | |||
| June | 15 296 | 3 859 (25.2) | 0.91 (0.87-0.96) | |||
| March/ April/May | 28 328 | 7 637 (27.0) | 1 | |||
| Region*** | <0.001 | |||||
| North West | 1 467 | 470 (32.0) | 1.36 (1.20-1.53) | |||
| AD/NO/FN | 3 460 | 674 (19.5) | 0.70 (0.56-0.63) | |||
| West | 5 720 | 677 (11.8) | 0.39 (0.35-0.43) | |||
| Centre | 52 697 | 8989 (17.1) | 0.59 (0.56-0.63) | |||
| Littoral | 14 028 | 2035 (14.5) | 0.49 (0.46-0.52) | |||
| SW/SU/ES | 7 834 | 2018 (25.8) | 1 | |||
| Age | 63 158* | 11 586 | <0.001 | <0.001 | ||
| ≥65 | 2 854 | 727 (25.5) | 2.37 (2.11-2.66) | 1.88 (1.66-2.11) | ||
| 50-64 | 10 025 | 2 049 (20.4) | 1.78 (1.62-1.96) | 1.56 (1.42-1.72) | ||
| 30-49 | 30 934 | 5 823 (18.8) | 1.61 (1.48-1.75) | 1.45 (1.33-1.58) | ||
| 19-29 | 13 763 | 2 284 (16.6) | 1.38 (1.26-1.51) | 1.26 (1.15-1.38) | ||
| 0-18 | 5 580 | 703 (12.6) | 1 | 1 | ||
| Gender | 84 796* | 14 804 | 0.34 | |||
| Female | 35 569 | 6 262 (17.6) | 1.02 (0.98-1.05) | |||
| Male | 49 227 | 8 542 (17.4) | 1 | |||
| Coexisting disorders | <0.001 | 0.03 | ||||
| Any | 3 464 | 984 (28.4) | 1.94 (1.80-2.09) | 1.1 (1.01-1.20) | ||
| No | 81 742 | 13 879 (17.0) | 1 | 1 | ||
| Symptoms | <0.001 | <0.001 | ||||
| Any | 20 020 | 6 910 (34.5) | 3.79 (3.65-3.94) | 3.37 (3.23-3.52) | ||
| No | 65 186 | 7 953 (12.2) | 1 | 1 | ||
*The denominators of patients who were included in the analysis are provided if they differed from the overall numbers in the group
The following variables were not considered in multivariate analysis
**Period of diagnosis: initially, participants were tested based on case definitions taking into account clinical manifestations, contact with a confirmed case and travel history. Then, the diagnosis was extended to population-level volunteers (increase of the testing capacity over time).
***Region: during the first months of the COVID-19 pandemic, the only laboratory conducting diagnosis by PCR was the “Centre Pasteur du Cameroun” located in the Centre Region and there were a system of samples transfer from other regions