TABLE 3.

Unadjusted Relationships Between Demographics, BMI, and 30-Day Death Rate for RYGB

	Gastric Bypass (Roux-en-Y)
	N	% Deaths Within 30 Days	P
Total	81,751	0.15%
Gender
Male	17,641	0.30%	<.0001
Female	64,110	0.11%
Age, y
18–29	7147	0.07%	<.0001
30–39	19,443	0.07%
40–49	23,552	0.11%
50–59	21,322	0.20%
60–69	9554	0.35%
70–75	733	0.55%
Race
Caucasians	62,682	0.14%	0.642
African American	8527	0.19%
Hispanic	6400	0.19%
Other	4142	0.14%
Baseline BMI, kg/m2
35–39	10,446	0.08%	<.0001
40–49	44,472	0.12%
50–59	20,104	0.18%
60–69	5191	0.37%
≥70	1538	0.52%
Insurance
Private	57,345	0.12%	0.0013
Government*	12,578	0.28%
Self-pay	1420	0.21%
Other†	3125	0.19%
Missing	7283	0.12%
Employment
Employed	49,183	0.10%	<.0001
Unemployed	6146	0.21%
Student	1376	0.07%
Homemaker	3529	0.06%
Disabled	6966	0.30%
Retired	5641	0.39%
Unknown	8910	0.18%

P values resulted from χ² test.

^*Includes Medicare, Medicaid, and Tricare.

^†More than 1 method was used.