Table 2. Panel A. Samples After Matching and Trimming.

	Full Sample				Diabetes Subsample
Population	LAGB	LRYGB	Random Sample	Morbid Obesity Sample	LAGB	LRYGB	Random Sample	Morbid Obesity Sample
Observations	9,631	9,631	9,631	9,639	2,447	2,447	2,447	2,455
Age (Years)	44.2	44.1	44.2	46.5*+	49	48.9	48.9	48.4*
Female (%)	79.2	78.9	79.3	70.1*+	71.3	71	72.8	70.9
Health plan: PPO (%)	56.4	55.6	55.9	54.6*	57.9	56.9	57.5	59.7
Health plan: HMO (%)	14.7	14.3	14.2	24.5*+	14.1	13.5	13.9	12.8
Health plan: comprehensive (%)	6.6	7.6*	7	4.7*+	6.5	7	6	7.3
Diabetes (%)	25.4	25.6	25.7	23.5*+	1	1	1	1
Asthma (%)	8.5	8.6	8.7	7.8+	9.1	9.8	9.6	8.9
Arthritis (%)	44.8	44.9	45.3	43.5	49.2	50.5	49.4	49.4
Hypertension (%)	44.2	44	44.6	38.9*+	58.4	57.1	57.2	57.6
Sleep apnea (%)	20	20.4	20	12.6*+	24.7	24.3	25.2	24.3
Migraines (%)	9.5	9.6	9.6	8.5*+	7.4	7.2	7.6	8
Dyslipidemia (%)	31.6	31.1	31.4	30.0*	45.7	46.2	43.6	46.3
COPD (%)	4.9	4.9	5.4	5.7*+	6.3	5.6	6.5	5.5
Inpatient payments (Q -2)	269.90	278.00	279.2	536.1*+	422.10	516.30	529.3	522.3
Inpatient payments (Q -3)	349.50	375.70	404.2	569.8*+	466.20	389.50	494.6	411.8
Inpatient payments (Q -4)	342.50	337.60	345.6	395	461.50	385.90	403.2	504
Inpatient payments (Q -5)	425.80	499.50	384.6+	531.3	658.60	493.00	686	425.4
Total payments, 1 year before procedure	9,765.80	10,101.80	9912.8	10167.1	13,909.30	14,107.70	14274.3	13706.2

* Different from the LAGB group at the 95% level.

⁺ Different from the LRYGB group at the 95% level.

Notes: Matching was conducted “without replacement,” meaning that each comparison sample patient was represented once in the analysis. COPD = chronic obstructive pulmonary disease; HMO = health maintenance organization; LAGB = laparoscopic adjustable gastric band; LRYGB = Laparoscopic Roux-en-Y Gastric Bypass; PPO = preferred provider organization; Q = quarter