Table 4 Univariate and multivariate IRRs of the total surgical procedures in sub-Saharan Africa and each region
From: Impact of COVID-19 on ophthalmic surgical procedures in sub-Saharan Africa: a multicentre study
| Â | Incidence rate ratio | 95% CI | p value |
|---|---|---|---|
Univariate | |||
 Region |  |  |  |
 Sub-Saharan Africa | 0.51 | 0.41–0.64 | < 0.001 |
 West Africa | 0.73 | 0.55–0.99 | 0.045 |
 Central Africa | 0.54 | 0.30–0.99 | 0.047 |
 East Africa | 0.60 | 0.39–0.92 | 0.018 |
 Southern Africa | 0.41 | 0.29–0.57 | < 0.001 |
Multivariate | |||
 Sub-Saharan Africa | |||
  Pandemic | 0.54 | 0.41–0.70 | < 0.001 |
  Wave 1 | 0.75 | 0.51–1.09 | 0.136 |
  Wave 2 | 1.09 | 0.75–1.58 | 0.655 |
 West Africa | |||
  Pandemic | 0.70 | 0.49–1.01 | 0.057 |
  Wave 1 | 0.97 | 0.58–1.62 | 0.909 |
  Wave 2 | 1.23 | 0.74–2.07 | 0.422 |
 Central Africa | |||
  Pandemic | 0.57 | 0.27–1.20 | 0.138 |
  Wave 1 | 0.95 | 0.33–2.72 | 0.924 |
  Wave 2 | 0.84 | 0.29–2.41 | 0.748 |
 East Africa | |||
  Pandemic | 0.58 | 0.38–0.91 | 0.017 |
  Wave 1 | 0.52 | 0.26–1.04 | 0.066 |
  Wave 2 | 1.60 | 0.86–2.94 | 0.138 |
 Southern Africa | |||
  Pandemic | 0.45 | 0.30–0.67 | < 0.001 |
  Wave 1 | 0.55 | 0.32–0.98 | 0.041 |
  Wave 2 | 1.04 | 0.59–1.83 | 0.885 |