Table 4.

Mean eGFR (ml/min per 1.73 m²) and 95% CIs, according to sleep quality

Overall Sleep Quality Score	N	Multivariate Adjusted Model 1a	Multivariate Adjusted Model 2b
<3	8265	96.4 (92.3 to 100.6)	89.4 (85.1 to 93.8)
3–5	2630	96.5 (92.4 to 100.6)	89.6 (85.2 to 93.9)
>5	145	93.6 (88.6 to 98.5)c	87.3 (82.2 to 93.4)
P trend		0.13	0.30

^aAdjusted for age, sex, education level (primary, high school, or college), income level (<600 600–1000, or >1000 RMB/mo), occupation (white collar, blue collar, or coalminer), physical activity (never, <4, or ≥4 times/week), smoking status (never, past smoker, or current smoker), alcohol consumption (never, past drinker, or current drinker), myocardial infarction history (no, yes), stroke history (no, yes), cancer history (no, yes), hypertension (no, prehypertension, or hypertension), diabetes (no, prediabetes, or diabetes), use of sleep medication (no, yes), body mass index (<24, 24–28, or ≥28 kg/m²), triglyceride(<0.82, 0.82–1.22, 1.22–1.87, or ≥1.87 mmol/L), LDL (<1.76, 1.76–2.12, 2.12–2.65, or ≥2.65 mmol/L), and HDL (<1.31, 1.31–1.54, 1.54–1.79, or ≥1.79 mmol/L).

^bFurther adjusted for presence of proteinuria (yes/no).

^cP<0.05, relative to overall sleep quality score <3.