Fig. 3

a Hospital length of stay. b Rate of composite complications stratified by tertiles of recovery slope on postoperative day 1. The boxes indicate the first quartile (bottom line), the median (central line) and the third quartile (upper line). The whiskers represent whiskers represent 10 %/90 % quantiles. Lowest tertile < 2.9 %/s, middle tertile 2.9–4.3 %/s, and highest tertile > 4.3 %/s