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. 2022 Dec 20;3(6):e12869. doi: 10.1002/emp2.12869

TABLE A4.

Pooled monthly visit counts and incident rate ratios, pediatric mental health visits resulting length of stay >12 h

VISITS RESULTING IN LOS >12 h 2020 2021
Count IRR (95% CI) Count IRR (95% CI)
January 282 (reference) 360 1.28 (1.09–1.49)
February 307 1.09 (0.93–1.28) 436 1.55 (1.33–1.80)
March 260 0.92 (0.78–1.09) 560 1.99 (1.72–2.29)
April 131 0.46 (0.38–0.57) 604 2.14 (1.86–2.47)
May 189 0.67 (0.56–0.81) 566 2.01 (1.74–2.32)
June 206 0.73 (0.61–0.87) 350 1.24 (1.06–1.45)
July 224 0.79 (0.67–0.95) 327 1.16 (0.99–1.36)
August 270 0.96 (0.81–1.13) 402 1.43 (1.23–1.66)
September 373 1.32 (1.13–1.54) 552 1.96 (1.70–2.26)
October 362 1.28 (1.10–1.50) 578 2.05 (1.78–2.36)
November 377 1.34 (1.15–1.56) 574 2.04 (1.77–2.35)
December 303 1.07 (0.91–1.26) 449 1.59 (1.37–1.85)

Note: Table reports pooled visit counts across 107 emergency departments in the Clinical Emergency Data Registry in 2020 and 2021, for pediatric mental health visits resulting in length of stay >12 h. IRRs are reported against January 2020 reference. CIs are adjusted for clustering within EDs.

Abbreviations: CI, confidence interval; EDs, emergency departments; IRR, incident rate ratio; LOS, length of stay.