Fig. 4From: Impact of ENT resource nurses in improving operating room efficiencyDOT variance due to case length and ENT resource nurse participation. Bar graph representing the mean values of DOT among groups with and without ENT resource nurse with different case length (ROT < 30 or > 30 min). In Group 1 without ENT nurse participation for cases with ROT < 30 min finished on average 2 min late (M = 2.15, SE = 0.47); Group 2 with ENT nurse participation for cases with ROT > 30 min finished on average 1 min early (M = -1.19, SE = 0.46); Group 3 without ENT nurse participation for cases with ROT > 30 min finished on average 7 min late (M = 6.53, SE = 0.86); Group 4 with ENT nurse participation for cases with ROT > 30 min finished on average 4 min early (M = -4.32, SE = 0.96). Standard Error (SE) was derived by using the formula, standard deviation (SD)/square root of total number of samples (√n)Back to article page