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Table 4 Daytime sleepiness and quality of life questionnaires according to obstructive sleep apnea severity

From: Association between obstructive sleep apnea severity and endothelial dysfunction in patients with type 2 diabetes

  AHI < 15 15 ≤ AHI < 30 AHI > 30 p value p value*
Daytime sleepiness
 ESS 7.5 (4.3) 8.5 (5.3) 10.6 (5.3) 0.01 0.08
 ESS ≥ 11, % 22.8 37.5 46.0 0.06
Quality of life
 SF36 PCS 50.4 (2.3) 50.6 (2.5) 51.0 (2.2) 0.51
 SF36 MCS 48.1 (5.9) 47.0 (6.5) 45.4 (6.4) 0.12
 SF36 bodily pain 60.4 (24.7) 60.9 (29.2) 54.1 (26.0) 0.41
 SF36 energy/vitality 57.1 (20.8) 52.1 (25.9) 43.0 (23.8) 0.02 0.02
 SF36 general health 65.6 (21.8) 62.3 (18.2) 56.2 (22.0) 0.11
 SF36 mental health 67.6 (20.3) 63.5 (23.1) 57.8 (22.0) 0.09
 SF36 physical functioning 72.3 (25.8) 65.4 (27.3) 62.5 (28.3) 0.24  
 SF36 role emotional 82.1 (34.1) 76.0 (35.4) 65.1 (42.0) 0.10
 SF36 role physical 83.3 (30.5) 66.0 (40.1) 58.0 (40.7) 0.007 0.01
 SF36 social functioning 75.5 (28.7) 76.6 (25.7) 61.6 (31.1) 0.03 0.04
  1. Data are expressed as mean (standard deviation) or percentages
  2. ESS Epworth sleepiness scale, PSQI Pittsburgh sleep quality index, PCS physical component score, MCS mental component score
  3. * p values were adjusted for age, gender, body mass index, insulin and injectable GLP-1 analog use