Hospitalization rates and cost in severe or complicated obesity: an Italian cohort study

BMC Public Health

Table 2 SHR and 95% CI of all-cause hospitalizations by sex, age group, BMI and WC at recruitment

	Males (py=10,004)					Females (py=35,393)
				Hospitalizations due to obesity					Hospitalizations due to obesity
	O	SHR	95% CI	O-E	AR%	O	SHR	95% CI	O-E	AR%
All-cause hospitalizations	7,231	3.53	3.45-3.61	5,183.3	71.7	24,236	3.22	3.18-3.26	16,704.3	68.9
*Age group* ( *years* )
18-29	362	3.69	3.33-4.10	264.0	72.9	1,357	3.31	3.13-3.49	946.4	69.8
30-39	760	5.04	4.70-5.41	609.2	80.2	2,418	2.97	2.85-3.09	1,603.3	66.3
40-49	1,065	5.03	4.74-5.34	853.2	80.1	3,180	3.46	3.34-3.58	2,259.9	71.1
50-59	2,087	4.17	4.00-4.35	1,586.5	76.0	5,929	3.81	3.72-3.91	4,373.7	73.8
60-69	2,017	3.14	3.01-3.29	1,375.5	68.2	7,012	3.43	3.35-3.51	4,965.3	70.8
≥70	940	2.11	1.98-2.25	494.8	52.6	4,340	2.43	2.36-2.51	2,555.5	58.8
*BMI* ( kg/m ² )
30.0-39.9 plus complications	3,581	3.14	3.04-3.25	2,440.9	68.2	10,684	3.02	2.97-3.08	7,148.0	66.9
≥40.0	3,650	4.02	3.89-4.15	2,742.3	75.1	13,552	3.39	3.34-3.45	9,556.3	70.5
WC ( cm )
≤50th percentile	3,299	3.14	3.04-3.25	2,249.8	68.2	11,468	2.97	2.92-3.02	7,605.6	66.3
>50^th percentile	3,698	3.93	3.81-4.06	2,757.9	74.6	12,351	3.49	3.43-3.55	8,810.2	71.3

SHR standardized hospitalization ratio, 95% CI confidence interval, py person years; O observed; E expected, AR% attributable risk %, BMI body mass index, WC waist circumference (median value for males=126 cm; median values for females=113 cm).

ISSN: 1471-2458