Table 1

Demographic and clinical characteristics

Characteristic	Mean or n (%)	SD	Quartiles
Characteristic	Mean or n (%)	SD	Q1	Median	Q3
Data set: 167,376 noncardiac procedures not constrained by having preoperative A1C and perioperative glucose measured or by procedure type
Age (years)	53	18	39	55	67
BMI	29	6.6	24	28	32
30-day postoperative mortality	1,456 (0.9%)
Female	96,873 (58%)
Data set: 6,684 noncardiac procedures constrained by having preoperative A1C and perioperative glucose measured and being among 199 types considered
Age (years)	60	15	50	62	71
BMI	32	7.7	26	30	36
30-day postoperative mortality	156 (2.3%)
Female	3,518 (53%)
Average perioperative glucose (mg/dL)	149	42	118	142	172
No. of perioperative glucose measurements	11	11	2	8	15
A1C (%\|mmol/mol)	7.1\|54	1.7\|19	5.9\|41	6.6\|49	7.8\|62
Data set: 12,199 cardiac procedures not constrained by having preoperative A1C and perioperative glucose measured or by procedure type
Age	62	14	54	63	72
BMI	29	6.0	25	28	32
30-day postoperative mortality	273 (2.2%)
Female	4,557 (37%)
Data set: 6,393 cardiac procedures constrained by having preoperative A1C and perioperative glucose measured and being among 9 types considered
Age	64	12	56	65	73
BMI	29	6.0	25	28	32
30-day postoperative mortality	116 (1.8%)
Female	2,257 (35%)
Average perioperative glucose (mg/dL)	146	19	134	145	156
No. of perioperative glucose measurements	32	13	24	33	42
A1C (%\|mmol/mol)	6.4\|46	1.4\|15	5.6\|38	6.0\|42	6.7\|50

Summary statistics of demographic and clinical characteristics for the cardiac and noncardiac sets of surgeries not constrained and constrained by having both preoperative A1C and perioperative glucose measured and by being one of the procedure types considered.