TABLE 4.

Unadjusted Relationships Between Preoperative Comorbidities and Other Factors With 30-Day Death for 81,751 RYGB Surgeries

		N (%) With Each Comorbidity		% Death Within 30-Days	P
		n	%
Hypertension	N	39,224	48.0%	0.09%	<0.0001
	Y	42,527	52.0%	0.21%
Congestive heart failure	N	79,822	97.6%	0.13%	<0.0001
	Y	1929	2.4%	0.83%
Ischemic heart disease	N	79,286	97.0%	0.14%	0.0001
	Y	2465	3.0%	0.45%
Angina assessment	N	79,341	97.1%	0.15%	0.464
	Y	2410	2.9%	0.21%
Peripheral vascular disease	N	80,743	98.8%	0.15%	0.0044
	Y	1008	1.2%	0.50%
Lower extremity edema	N	71,105	87.0%	0.14%	0.286
	Y	10,646	13.0%	0.19%
DVT/PE	N	79,278	97.0%	0.15%	0.230
	Y	2473	3.0%	0.24%
Diabetes	N	55,974	68.5%	0.11%	<0.0001
	Y	25,777	31.5%	0.24%
Hyperlipidemia	N	59,204	72.4%	0.12%	0.0003
	Y	22,547	27.6%	0.23%
GOUT/Hyperuricemia	N	80,879	98.9%	0.15%	0.018
	Y	872	1.1%	0.46%
Obstructive sleep apnea syndrome	N	51,969	63.6%	0.13%	0.056
	Y	29,782	36.4%	0.18%
Obesity hypoventilation syndrome	N	80,124	98.0%	0.14%	0.0003
	Y	1627	2.0%	0.49%
Pulmonary hypertension	N	81,312	99.5%	0.14%	<0.0001
	Y	439	0.5%	1.59%
GERD	N	61,528	75.3%	0.15%	0.742
	Y	20,223	24.7%	0.16%
Liver disease	N	79,792	97.6%	0.15%	0.017
	Y	1959	2.4%	0.36%
Psychosocial impairment	N	78,594	96.1%	0.15%	0.047
	Y	3157	3.9%	0.29%
Depression	N	61,022	74.6%	0.14%	0.429
	Y	20,729	25.4%	0.17%
Mental Health diagnosis	N	72,505	88.7%	0.16%	0.265
	Y	9246	11.3%	0.11%
Alcohol use	N	70,901	86.7%	0.15%	0.725
	Y	10,850	13.3%	0.14%
Substance abuse	N	81,399	99.6%	0.15%	0.466
	Y	352	0.4%	0.00%
Tobacco use	N	77,704	95.0%	0.15%	0.705
	Y	4047	5.0%	0.17%
Pseudotumor cerebri	N	81,563	99.8%	0.15%	0.177
	Y	188	0.2%	0.53%
Abdominal hernia	N	77,384	94.7%	0.14%	0.0099
	Y	4367	5.3%	0.30%
Functional status	N	78,788	96.4%	0.14%	<0.0001
	Y	2963	3.6%	0.44%