TABLE A11.
Subset analysis of 33 EDs, pooled monthly visit counts and incident rate ratios, and pediatric mental health visits resulting in length of stay >12 h
| 2019 | 2020 | IRR (95% CI) | 2021 | IRR (95% CI) | |
|---|---|---|---|---|---|
| January | 62 | 60 | 0.97 (0.68–1.38) | 74 | 1.19 (0.85–1.67) |
| February | 67 | 75 | 1.12 (0.81–1.56) | 89 | 1.33 (0.97–1.82) |
| March | 62 | 58 | 0.94 (0.93–0.94) | 90 | 1.45 (1.45–1.46) |
| April | 75 | 24 | 0.32 (0.20–0.51) | 111 | 1.48 (1.10–1.98) |
| May | 49 | 35 | 0.71 (0.46–1.10) | 95 | 1.94 (1.37–2.74) |
| June | 27 | 35 | 1.30 (0.78–2.14) | 61 | 2.26 (1.44–3.55) |
| July | 26 | 43 | 1.65 (1.02–2.69) | 51 | 1.96 (1.22–3.15) |
| August | 35 | 54 | 1.54 (1.01–2.36) | 65 | 1.86 (1.23–2.80) |
| September | 72 | 87 | 1.21 (1.20–1.21) | 126 | 1.75 (1.75–1.76) |
| October | 69 | 104 | 1.51 (1.50–1.51) | 102 | 1.48 (1.47–1.48) |
| November | 65 | 86 | 1.32 (1.32–1.33) | 99 | 1.52 (1.52–1.53) |
| December | 53 | 73 | 1.38 (0.97–1.96) | 84 | 1.58 (1.12–2.24) |
Note: Table reports pooled pediatric mental health visit counts resulting in length of stay >12 h across 33 EDs in the Clinical Emergency Data Registry in 2020 and 2021. IRRs are reported against 2019 reference for the corresponding month. CIs are adjusted for clustering within EDs.
Abbreviations: CI, confidence interval; EDs, emergency departments; IRR, incident rate ratio; LOS, length of stay.