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. Author manuscript; available in PMC: 2020 Jun 1.
Published in final edited form as: Anesthesiology. 2019 Jun;130(6):885–897. doi: 10.1097/ALN.0000000000002677

Table 2.

Participant Characteristics

Surgical Patients (n=53)
Age--years, mean (± SD) 50 (±17)
Male sex-- no. (%) 29 (54.7)
Race-- no. (%)
 White 46 (86.8)
 Black 4 (7.5)
 Other 3 (5.7)
Ethnicity—no. (%)
 Non-Hispanic 46 (86.8)
 Other/unknown 4 (7.5)
 Hispanic 3 (5.7)
Type of surgery-- n (%)
 Urology 26 (49.1)
 Orthopedic 10 (18.9)
 Surgical oncology 6 (11.3)
 Plastics 6 (11.3)
 Neurosurgery 3 (5.7)
 Minimally invasive surgery 2 (3.8)