Table 3.

Number of urgent surgical procedures performed in participating surgical centers

Period	Overall number.	Mean ± SD	Median	95%IC	Range	p*
March 2019	2090	29.8 ± 22.3	23	24.5–35.2	1–94	< 0.0001
2020(1)	2190	31.7 ± 15.7	24	22.3–41.2	1–102
2020(2)	1086	15.7 ± 14.9	10	12.1–19.3	0–80

SD standard deviation; 95%IC 95% interval confidence; 2020 [1] January 23 to February 22, 2020; 2020 [2] February 23 to March 22, 2020

*March 2019–2020 [1], p = 0.826; 2020 [1]–2020 [2], p < 0.0001