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Table 3 Associations between sleep quality and components of sleep quality and frailty status by logistic regression analysis

From: Associations of sleep quality and sleep duration with frailty and pre-frailty in an elderly population Rugao longevity and ageing study

Sleep qualityCrude modelModel1Model2Model3
Pre-frail
 Poor subjective sleep quality1.75 (1.43–2.16)***1.61 (1.3–1.99)***1.63 (1.3–2.04)***1.51 (1.20–1.90)***
 PSQI> 5 vs. ≤ 5
 PSQI global score1.11 (1.08–1.15)***1.1 (1.06–1.14)***1.1 (1.06–1.14)***1.08 (1.04–1.13)***
 Per SD PSQI score1.41 (1.26–1.57)***1.35 (1.21–1.52)***1.35 (1.2–1.52)***1.29 (1.14–1.46)***
 Sleep quality component1.22 (1.04–1.42)*1.15 (0.98–1.36)1.15 (0.97–1.37)1.08 (0.91–1.29)
 Sleep latency component1.3 (1.16–1.46)***1.24 (1.1–1.4)***1.24 (1.1–1.41)**1.23 (1.08–1.4)**
 Sleep duration component0.98 (0.86–1.12)0.95 (0.83–1.09)0.93 (0.8–1.07)0.9 (0.78–1.05)
 Sleep efficiency component1.1 (1.01–1.2)*1.05 (0.96–1.15)1.05 (0.96–1.16)1.01 (0.92–1.12)
 Sleep disturbance component2.01 (1.6–2.51)***1.97 (1.57–2.48)***2.04 (1.6–2.59)***1.88 (1.46–2.4)***
 Sleep medication use component1.21 (0.82–1.77)1.17 (0.79–1.73)1.01 (0.67–1.52)1.01 (0.65–1.56)
 Daytime dysfunction component1.85 (1.62–2.1)***1.9 (1.66–2.17)***1.9 (1.65–2.19)***1.9 (1.64–2.2)***
Frail
 Poor subjective sleep quality2.43 (1.7–3.46)***2.15 (1.49–3.09)***2.19 (1.49–3.21)***1.78 (1.19–2.66)**
PSQI> 5 vs. ≤ 5
 PSQI global score1.22 (1.16–1.29)***1.2 (1.14–1.27)***1.2 (1.13–1.27)***1.16 (1.09–1.23)***
 Per SD PSQI score1.87 (1.58–2.21)***1.77 (1.49–2.11)***1.75 (1.46–2.1)***1.6 (1.32–1.94)***
 Sleep quality component1.66 (1.28–2.16)***1.54 (1.17–2.01)**1.51 (1.14–2)**1.24 (0.92–1.68)
 Sleep latency component1.6 (1.32–1.93)***1.5 (1.23–1.83)***1.45 (1.18–1.79)***1.39 (1.12–1.72)**
 Sleep duration component1.07 (0.86–1.34)1.02 (0.81–1.27)1.02 (0.8–1.28)0.95 (0.74–1.23)
 Sleep efficiency component1.25 (1.08–1.45)**1.16 (1–1.34)1.16 (0.99–1.35)1.08 (0.91–1.27)
 Sleep disturbance component2.84 (1.99–4.05)***2.84 (1.97–4.1)***2.85 (1.94–4.19)***2.34 (1.55–3.51)***
 Sleep medication use component1.43 (0.85–2.41)1.34 (0.78–2.29)1.21 (0.68–2.17)1.16 (0.62–2.19)
 Daytime dysfunction component2.67 (2.22–3.22)***2.85 (2.34–3.46)***2.9 (2.36–3.55)***2.8 (2.25–3.48)***
  1. Model1 adjusted for age, and gender on crude model. Model2 adjusted for smoking, drinking, education, marital status, occupation, BMI category plus the variables in Model1. Model3 adjusted for diabetes, hypertension, MCI, perceived overall health plus the variables in Model 2
  2. *P < 0.05, **P < 0.01, ***P < 0.001