Combined consideration of body mass index and waist circumference identifies obesity patterns associated with risk of stroke in a Chinese prospective cohort study

Table 3 Associations of Combining BMI and WC with Stroke in Females

	Normal weight or underweight/ Normal WC	Overweight/ Normal WC	Normal weight or underweight/ Abdominal obesity	Overweight/ Abdominal obesity	Obesity/ Abdominal obesity
General population
Number of events	220	46	77	242	151
Incidence rate (no./1000 person-years)	5.40	5.42	8.43	10.37	10.87
Hazard ratio	1.00 (reference)	0.90	0.98	1.33	1.46
95%CI, without FAR	-	0.65-1.25	0.75-1.29	1.10-1.61	1.17-1.81
95%CI, with FAR	0.87-1.15	0.67-1.21	0.78-1.24	1.17-1.52	1.24-1.72
P-value^*		0.533	0.901	0.004^#	0.001^#
Subjects with CVD risk factors
Number of events	158	39	60	216	137
Incidence rate (no./1000 person-years)	7.81	6.94	10.09	12.55	11.83
Hazard ratio	1.00	0.84	0.90	1.27	1.27
95%CI, without FAR	-	0.59-1.20	0.66-1.22	1.03-1.58	1.00-1.61
95%CI, with FAR	0.85-1.18	0.61-1.16	0.69-1.17	1.11-1.51	1.07-1.51
P-value^*		0.340	0.502	0.028^#	0.046^#

CI confidence interval, FAR floating absolute risk, BMI body mass index, WC waist circumference, HDL-C high-density lipoprotein cholesterol, CVD cardiovascular disease
^*P-value for fully adjusted hazard ratio (HR)
^# indicates P < 0.05

ISSN: 1471-2458