Contributing Factors to Operating Room Delays Identified from an Electronic Health Record: A Retrospective Study

Table 3

Summary statistics of procedure delays grouped by ASA Physical Status Classification.

ASA Physical Status Classification	Total number of cases	Avg proc delay (hours)	Std dev (hours)
1	65,135	0.275	0.965
2	1,462	0.259	0.884
3	47	0.137	1.11
4	710	0.415	1.30
5	215	0.362	0.841
6	243	0.254	0.785
≥3	1,215	0.363	1.13