Table 4

OR of NAFLD by the PSQI and its components in women (n=2964)

ScoreNModel 1Model 2
OR (95% CI)P valueOR (95% CI)P value
Global PSQI score≤517831.00 (reference)1.00 (reference)
≥611810.99 (0.85–1.15)0.8471.17 (0.94–1.47)0.161
Subjective sleep quality03321.00 (reference)1.00 (reference)
120290.86 (0.68–1.10)0.2330.93 (0.70–1.23)0.610
25541.02 (0.77–1.35)0.9021.11 (0.80–1.55)0.538
3490.67 (0.35–1.30)0.2330.81 (0.39–1.68)0.565
Sleep latency013991.00 (reference)1.00 (reference)
110380.82 (0.69–0.97)0.0220.83 (0.68–1.01)0.068
24050.95 (0.75–1.20)0.6590.98 (0.74–1.29)0.865
31221.02 (0.69–1.50)0.9200.82 (0.52–1.29)0.392
Sleep duration04301.00 (reference)1.00 (reference)
19941.15 (0.90–1.45)0.2621.22 (0.92–1.60)0.169
214440.94 (0.75–1.18)0.5790.92 (0.70–1.20)0.520
3961.17 (0.74–1.84)0.5101.07 (0.63–1.82)0.810
Habitual sleep efficiency020301.00 (reference)1.00 (reference)
17491.29 (1.09–1.53)0.0041.21 (0.99–1.48)0.069
21180.80 (0.53–1.21)0.2960.96 (0.60–1.54)0.859
3670.73 (0.42–1.26)0.2550.66 (0.37–1.25)0.199
Sleep disturbance09561.00 (reference)1.00 (reference)
119460.97 (0.83–1.14)0.7250.97 (0.80–1.17)0.763
2621.17 (0.69–1.99)0.5511.30 (0.70–2.44)0.410
30
Use of sleep medication026441.00 (reference)1.00 (reference)
1790.69 (0.42–1.13)0.1420.97 (0.55–1.72)0.919
2540.68 (0.37–1.24)0.2020.62 (0.31–1.22)0.166
31870.75 (0.54–1.04)0.0840.69 (0.46–1.02)0.061
Daytime dysfunction014171.00 (reference)1.00 (reference)
112340.96 (0.82–1.13)0.6260.98 (0.81–1.19)0.848
22731.04 (0.79–1.36)0.8050.94 (0.68–1.30)0.718
3402.08 (1.10–3.92)0.0242.62 (1.20–5.72)0.015
  • Model 1: adjustment for age, smoking habits and physical activity; model 2: model 1 plus adjustment for body mass index.

  • NAFLD, non-alcoholic fatty liver disease; PSQI, Pittsburgh Sleep Quality Index.