Table 1.
Incidence rate ratio (IRR) and 95% confidence interval (95%CI) for restorative, tooth extraction, endodontic and total procedures in models of multilevel mixed‐effects negative binomial regression for Brazilian municipalities (N = 5564). January 2019 to May 2020
| Group of procedures | Impact of COVID‐19 | |||||||
|---|---|---|---|---|---|---|---|---|
| Complete longitudinal analysis from 2019 January to 2020 May | Compared to the respective moths in 2019 | |||||||
| From 1st COVID‐19 case in Brazil (February 2020) | From the start of exponential contagion (April 2020) | April | May | |||||
| IRR (95%CI) | P‐value | IRR (95%CI) | P‐value | IRR (95%CI) | P‐value | IRR (95%CI) | P‐value | |
| Restorative | ||||||||
| Before pandemic | 1 | <.001 | 1 | <.001 | 1 | <.001 | 1 | <.001 |
| Pandemic | 0.32 (0.31‐0.33) | 0.09 (0.08‐0.09) | 0.03 (0.02‐0.04) | 0.03 (0.02‐0.03) | ||||
| Tooth extraction | ||||||||
| Before pandemic | 1 | <.001 | 1 | <.001 | 1 | <.001 | 1 | <.001 |
| Pandemic | 0.36 (0.35‐0.37) | 0.16 (0.16‐0.17) | 0.07 (0.06‐0.08) | 0.07 (0.06‐0.08) | ||||
| Endodontic | ||||||||
| Before pandemic | 1 | <.001 | 1 | <.001 | 1 | <.001 | 1 | <.001 |
| Pandemic | 0.45 (0.41‐0.48) | 0.22 (0.19‐0.25) | 0.09 (0.06‐0.15) | 0.07 (0.05‐0.11) | ||||
| Total of procedures | ||||||||
| Before pandemic | 1 | <.001 | 1 | <.001 | 1 | <.001 | 1 | <.001 |
| Pandemic | 0.34 (0.32‐0.35) | 0.11 (0.10‐0.12) | 0.04 (0.03‐0.05) | 0.04 (0.03‐0.05) | ||||
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