Table 2.

Demographic and preoperative characteristics in patients who were transfused and those who were not transfused

	No Transfusion group (n = 7341)	Transfusion group (n = 1178)	p-value*
Age, years			<0.001
Mean ± sd	60.77 ± 12.24	62.50 ±12.64
Median (range)	61 (18 – 89)	63 (19 – 89)
Missing	43	8
BMI, kg/m2			<0.001
Mean ± sd	32.80 ± 9.53	29.72 ± 8.56
Median (range)	31 (10.97–102.50)	27.63 (15.79–76.89)
Missing	52	11
Race
White	5,749 (88.38%)	845 (82.36%)	<0.001
Black	510 (7.84%)	115 (11.21%)	<0.001
Other	246 (3.78%)	66 (6.43%)	<0.001
Missing	836	333
Ethnicity
Hispanic	490 (6.67%)	72 (6.11%)	0.470
ASA class			<0.001
I	261 (3.56%)	25 (2.12%)
II	3631 (49.46%)	454 (38.54%)
III	3248 (44.24%)	645 (54.75%)
IV	192 (2.62%)	52 (4.41%)
V	1 (0.01%)	1 (0.08%)
None assigned	8 (0.11%)	1 (0.08%)
Disseminated cancer	894 (11.38%)	284 (42.84%)	<0.001
Presence of ascites	179 (2.44)	38 (3.23%)	0.111
Chemotherapy < 30 days	69 (0.94%)	60 (5.09%)	0.421
Tobacco Use	902 (12.29)	131 (11.12%)	0.255
Diabetes	1201(16.37)	207 (17.57%)	0.304
Steroid use	124 (1.69)	28 (2.38%)	0.098
Hypertension	3662 (49.88%)	568 (48.22%)	0.288
Dyspnea	511 (6.96%)	130 (11.04%)	<0.001
COPD	179 (2.44%)	38 (3.23%)	0.111
Cancer			<0.001
Uterus	5239 (71.37%)	431 (36.59%)
Ovary	1369 (18.65%)	658 (55.86%)
Vagina/Vulva	118 (1.61%)	14 (1.19%)
Cervix	615 (8.38%)	75 (6.37%)
Bleeding disorder	140 (1.91%)	52 (4.41%)	<0.001
>10% weight loss in last 6 months	87 (1.19%)	64 (5.43%)	<0.001

BMI = body mass index, ASA = American Society of Anesthesiologists class; COPD = chronic obstructive pulmonary disease

^*Chi-squared and Fisher’s-exact test for categorical variables and the Wilcoxon rank-sum test to compare medians between groups for continuous variables