Table 3.

The association of obesity defined by the number of metabolic abnormality components with readmission

Subgroups	30-day readmission		90-day readmission		180-day readmission
	HR (95% CI)	P value	HR (95% CI)	P value	HR (95% CI)	P value
Non-obesity metabolic healthy	1(reference)		1(reference)		1(reference)
Non-obesity with one metabolic abnormality	1.091(1.002,1.188)	0.044	1.094(1.024,1.17)	0.008	1.085(1.022,1.152)	0.007
Non-obesity with two metabolic abnormalities	1.123(1.023,1.233)	0.014	1.162(1.081,1.249)	< 0.001	1.145(1.073,1.221)	< 0.001
Non-obesity with three metabolic abnormalities	1.281(1.139,1.441)	< 0.001	1.321(1.207,1.447)	< 0.001	1.29(1.188,1.399)	< 0.001
Obesity metabolic healthy	1.05(0.86,1.282)	0.63	1.022(0.871,1.198)	0.791	0.999(0.864,1.154)	0.984
Obesity with one metabolic abnormality	1.213(1.032,1.426)	0.019	1.131(0.993,1.289)	0.064	1.184(1.056,1.328)	0.004
Obesity with two metabolic abnormalities	1.326(1.137,1.546)	< 0.001	1.315(1.164,1.485)	< 0.001	1.301(1.166,1.451)	< 0.001
Obesity with three metabolic abnormalities	1.198(0.988,1.454)	0.067	1.242(1.071,1.441)	0.004	1.238(1.083,1.414)	0.002

COX analysis was conducted to assess the association of obesity defined by the number of metabolic abnormalities with readmission, adjusted for age, sex, discharge disposition, discharge month, local hospital admission, household income, emergency department service, insurance type, and location of residence