Table 4.

Risk of new AF

	HR	CI 95%		$P-\mathrm{value}$
Adjusted by age and gender
prob (0.2, 0.4]	5.222	4.343	6.279	<0.001
prob (0.4, 0.6]	12.063	9.933	14.651	<0.001
prob (0.6, 0.8]	20.967	17.053	25.779	<0.001
prob (0.8, 1]	43.764	36.186	52.928	<0.001
prob (0.387, 1]	10.719	9.389	12.237	<0.001

The table shows the hazard ratios (HRs) with for the different probability groups. The models were adjusted by different selection of variables. For the quintiles, the reference class is prob (0, 0.2]; for the dichotomic analysis, the reference class is (0, 0.387].