A 23-year study of mortality and development of co-morbidities in patients with obesity undergoing bariatric surgery (laparoscopic gastric banding) in comparison with medical treatment of obesity

Table 2 Comparison of mortality (HR with 95% CI), incident diseases, and hospital admissions in surgery and nonsurgical patients during the original study (observation period 13.9 ± 1.87 years, mean ± SD, 10) and in the follow-up study (observation period 19.5 ± 1.88 years)

	Original study	p	Follow-up study	p
Mortality	HR = 0.35, 95% CI 0.19–0.65	0.001	HR = 0.52, 95% CI 0.33–0.80	0.003
In non-DM	HR = 0.42, 95% CI 0.19–0.97	0.041	HR = 0.61, 95% CI = 0.35–1.05	0.076
In DM	HR = 0.34, 95% CI 0.13–0.87	0.025	HR = 0.46, 95% CI 0.22–0.94	0.034
Below median age	HR = 0.69, 95% CI 0.18–2.68	0.586	HR = 1.98, 95% CI 0.76–5.14	0.162
Above median age	HR = 0.29, 95% CI 0.14–0.58	0.001	HR = 0.38, 95% CI 0.23–0.65	0.001

	Surgery	Nonsurgical	p	Surgery	Nonsurgical	p
Incident diseases
Diabetes	15	48	0.018	15	75	0.001
Arterial hypertension	42	107	0.028	47	174	0.001
CVD	10	17	NS	14	52	0.009
Renal diseases	0	3	NS	0	35	0.001
Liver diseases	8	18	NS	8	25	NS
Cancer	4	17	NS	10	35	0.01
Lung diseases	4	9	NS	4^a	9^a	NS
Metabolic diseases	4	13	NS	4^a	13	NS
Total	87	232	0.001	102	418	0.001
Hospital admissions
Diabetes	14	33	NS	14	120	0.001
CVD	34	69	NS	35	119	0.001
Liver disease	4	11	NS	6	28	0.028
Renal diseases	0	4	NS	0	8	NS
Cancer	9	22	NS	10	44	0.005
Lung diseases	5	18	NS	5^a	18^a	NS
Metabolic diseases	5	12	NS	5^a	12^a	NS
Muscular and bone diseases	17	28	NS	17^a	28^a	NS
Total	88	197	0.04	92	377	0.001

^aWhen no new incident diseases of hospital admissions were recorded, data from the original study are indicated

ISSN: 1475-2840