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. 2021 Jan 27;156(4):315–321. doi: 10.1001/jamasurg.2020.6361

Table 1. Study Participant Characteristics.

Variable No. (%)
Control (n = 356) Intervention (n = 327)
Age, median (IQR), y 55 (46-65) 58 (45-67)
Race
Asian 23 (6.5) 29 (8.9)
Black 21 (5.9) 33 (10)
Other 10 (2.8) 18 (5.5)
Unknown 13 (3.7) 13 (4.0)
White 289 (81) 234 (72)
Sex
Female 293 (82) 273 (83)
Male 63 (18) 54 (17)
Service
Colorectal Service 119 (33) 97 (30)
Gynecology Service 237 (77) 230 (70)

Abbreviation: IQR, interquartile range.