Table 2.

Multivariate-adjusted hazard ratios of incident atrial fibrillation

Characteristics	Univariate adjusted		Model 1		Model 2
	HR (95% CI)	P-value	HR (95% CI)	P-value	HR (95% CI)	P-value
BMI (kg/m2)	1.04 (0.99, 1.10)	0.108	1.07 (1.01, 1.13)	0.014
Lean mass
Total body lean mass (kg)	1.10 (1.03, 1.16)	0.003	1.21 (1.14, 1.29)	<0.001	1.24 (1.14, 1.34)	<0.001
Central lean mass (kg)	1.28 (1.14, 1.44)	<0.001	1.49 (1.31, 1.69)	<0.001	1.51 (1.31, 1.74)	<0.001
Peripheral lean mass (kg)	1.12 (1.00, 1.26)	0.049	1.37 (1.21, 1.56)	<0.001	1.39 (1.19, 1.63)	<0.001
Lean body mass index
Total LBMI (kg/m2)	1.28 (1.08, 1.52)	0.005	1.39 (1.15, 1.67)	<0.001
Central LBMI (kg/m2)	2.01 (1.43, 2.82)	<0.001	2.03 (1.41, 2.91)	<0.001
Peripheral LBMI (kg/m2)	1.34 (0.97, 1.86)	0.077	1.74 (1.22, 2.50)	0.002
Fat mass
Total body fat mass (kg)	1.02 (0.99, 1.05)	0.230	1.04 (1.01, 1.07)	0.007	1.04 (0.97, 1.10)	0.256
Central fat mass (kg)	1.03 (0.98, 1.09)	0.187	1.05 (1.00, 1.11)	0.059	0.99 (0.90, 1.09)	0.809
Peripheral fat mass (kg)	1.03 (0.97, 1.08)	0.341	1.10 (1.04, 1.16)	0.001	1.12 (1.01, 1.24)	0.032
Fat %
Total body fat %	0.99 (0.95, 1.04)	0.777	1.00 (0.95, 1.04)	0.909	0.92 (0.86, 0.98)	0.006
Central fat % (of central mass)	0.99 (0.95, 1.04)	0.728	0.98 (0.94, 1.03)	0.451	0.89 (0.84, 0.95)	<0.001
Central fat % (of total fat mass)	1.00 (0.96, 1.05)	0.920	0.95 (0.90, 0.99)	0.025	0.92 (0.88, 0.97)	0.002

Model 1: Adjusted for age, ethnicity, education, hypertension, diabetes, hyperlipidaemia, coronary artery disease, heart failure, peripheral artery disease, smoking, dietary modification intervention, and hormone therapy intervention. Model 2: Adjusted for all variables in model 1, in addition to body mass index. HR reported per 5 unit increase in each predictor.

HR, hazard ratios; CI, confidence intervals.