Table 2

Summary of the relative risks of all outcomes evaluated

Outcomes	Mild OSA (RR with 95% CI)	P value for mild OSA	Moderate OSA (RR with 95% CI)	P value for moderate OSA	Severe OSA (RR with 95% CI)	P value for severe OSA
MACEs	0.98 (0.87 to 1.11)	0.741	1.16 (1.01 to 1.33)	0.034	2.04 (1.56 to 2.66)	<0.001
CHD	1.25 (0.95 to 1.66)	0.117	1.38 (1.04 to 1.83)	0.026	1.63 (1.18 to 2.26)	0.003
Stroke	1.29 (0.69 to 2.41)	0.424	1.35 (0.82 to 2.23)	0.245	2.15 (1.42 to 3.24)	<0.001
Cardiac death	1.80 (0.68 to 4.76)	0.236	1.11 (0.53 to 2.35)	0.781	2.96 (1.45 to 6.01)	0.003
All-cause mortality	1.26 (0.77 to 2.07)	0.354	1.04 (0.60 to 1.79)	0.895	1.54 (1.21 to 1.97)	<0.001
Heart failure	1.02 (0.78 to 1.34)	0.868	1.07 (0.74 to 1.54)	0.719	1.44 (0.94 to 2.21)	0.097

CHD, coronary heart disease; MACE, major cardiovascular event; OSA, obstructive sleep apnoea; RR, relative risk.