Table 2. The primary outcomes between room temperature and pocket warming groups.

Variable	Room Temp. (n = 72)	Pocket Warming (n = 64)	P Values
Analgesic onset (minutes)
Median [IQR]	6.2 [4, 15]	8 [4.1, 16]	0.322
Mean (SD)*	10.3 (11.5)	12.3 (12.4)
VRS score ≤ 3/10 within 15 minutes (n (%))	59 (82)	50 (78)	0.457

*the data was non-normal distribution by Shapiro-Wilk test

Legends: n, numbers; IQR, interquartile range; SD, standard deviation; VRS, Verbal Rating Score