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Table 2 Associations between the number of ERAS programs and the number of ORs and the number of ERAS programs and the presence/absence of an anesthesia or surgery residency program

From: Types of surgical patients enrolled in enhanced recovery after surgery (ERAS) programs in the USA

Number of operating rooms (n=87) Number of ERAS programs Spearman’s Rho
N Mean ± SD Min Max
 1–10 26 2.6 ± 1.8 1 7 Rho = 0.5, p<0.001
 11–20 25 4.1 ± 2.8 1 10
 21–40 20 5.0 ± 3.0 1 12
 >40 16 6.4 ± 3.6 1 13
Anesthesia and/or surgery residency program (n=86) Number of ERAS programs Wilcoxon rank sum
N Mean ± SD Min Max
 No 35 2.3 ± 2.0 1 10 p<0.001
 Yes 51 5.3 ± 3.2 1 13