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. 2017 Jan 15;13(1):49–56. doi: 10.5664/jcsm.6386

Figure 2. Kaplan-Meier survival curves for cardiovascular mortality.

Figure 2

Kaplan-Meier estimated survival rates for cardiovascular mortality according to OSA severity and insomnia. All of the OSA groups and the insomnia group had significantly lower survival rates than the no-sleep-disorder group (p = 0.019, p = 0.007, p < 0.001, and p = 0.006 respectively). The cardiovascular survival rate of the severe OSA group was significantly lower than those of all of the other groups (p = 0.005). The cardiovascular survival rate of the insomnia group was significantly lower than that of the no-sleep-disorder group (p = 0.006). No significant difference was found among the mild OSA group, the moderate OSA group, and the insomnia group for cardiovascular mortality. OSA = obstructive sleep apnea.