The Prioritization of Clinical Risk Factors of Obstructive Sleep Apnea Severity Using Fuzzy Analytic Hierarchy Process

Table 17

Normalized weight vector of each clinical risk factor, its ranking in OSA, and sensitivity/specificity with 95% CI of each severity group.

Criteria	Factors	Normalized weight vector	Ranking	Sensitivity%; (95% CI)
				Specificity%; (95% CI)
Severe OSA	Witnessed snoring and apnea (A19)	0.326	1	92.32; 89.62–94.51
	Symptoms at nighttime awakening (A16)	0.245	2
	Body built (A15)	0.129	3
	Sleep maintenance (A18)	0.116	4	91.76; 88.82–94.13
	Epworth Sleepiness Scale (7/8) (A14)	0.103	5
	Underlying diseases and personal variables (A17)	0.08	6
Moderate OSA	Witnessed snoring and apnea plus awakening due to chest discomfort (A12)	0.481	1	89.52; 84.57–93.32
	Decreased mental and physical performance (A10)	0.291	2
	Epworth Sleepiness Scale (6/8) (A9)	0.214	3	88.18; 85.51–90.52
	Underlying diseases and surreal dream (A13)	0.013	4
	Related personal variables (A11)	0	5
Mild OSA	Choking and witnessed snoring (A8)	0.233	1	91.08; 85.49–95.04
	Risk variables and work (A7)	0.203	2
	Epworth Sleepiness Scale (3/8) (A5)	0.194	3	84.58; 81.65–87.21
	Causes of nighttime awakening (A4)	0.193	4
	Lung diseases and sleep-wake pattern (A6)	0.177	5
No OSA	Symptoms during sleep (A2)	0.476	1	96.49; 87.89–99.57
	Epworth Sleepiness Scale (2/8) and related variables (A1)	0.397	2
	Underlying diseases and sleep posture (A3)	0.127	3	81.23; 78.31–83.92