Table 1. Number of suicides per month during the COVID-19 pandemic in Korea.

	Observed	Expected (95% CI)	OER (95% CI)
Feb	993	1,033.67 (822.03–1,253.58)	0.96 (0.90–1.02)
Mar	1,149	1,098.95 (875.38–1,303.30)	1.05 (0.99–1.11)
Apr	1,120	1,111.68 (910.28–1,322.49)	1.01 (0.95–1.07)
May	1,152	1,162.50 (942.11–1,379.77)	0.99 (0.93–1.05)
Jun	1,135	1,067.91 (850.25–1,281.66)	1.06 (1.00–1.12)
Jul	1,228	1,220.71 (1012.15–1,443.11)	1.01 (0.95–1.06)
Aug	1,185	1,158.28 (944.42–1,373.32)	1.02 (0.96–1.08)
Sep	1,020	1,038.64 (818.93–1,258.88)	0.98 (0.92–1.04)
Oct	1,147	1,016.27 (808.98–1,227.47)	1.13 (1.06–1.19)
Nov	1,061	1,143.76 (922.67–1,357.29)	0.93 (0.87–0.98)
Dec	913	958.46 (740.14–1,155.45)	0.95 (0.89–1.01)

Bold indicates a statistically significant OER with a 95% CI that excludes the null value of 1.00.

Abbreviations: OER, Observed-to-Expected Ratio; CI, Confidence Interval.