Table 3.

Association between sleep duration and AAC-24 score in CKD and non-CKD subgroups.

Subgroups	Total β (95%CI)	P-value	P for interaction	Male β (95%CI)	P-value	P for interaction	Female β (95%CI)	P-value	P for interaction
			0.011			0.001			0.784
CKD
2–5 h	0.33 (-0.66, 1.31)	0.515		-0.50 (-1.87, 0.88)	0.478		0.83 (-0.61, 2.27)	0.26
6–8 h	Reference			Reference			Reference
≥ 9 h	0.63 (-0.42, 1.69)	0.241		2.12 (0.75, 3.50)	0.003		-1.20 (-2.83, 0.42)	0.148
Non-CKD
2–5 h	-0.07 (-0.38, 0.24)	0.649		-0.18 (-0.65, 0.28)	0.446		0.01 (-0.41, 0.44)	0.951
6–8 h	Reference			Reference			Reference
≥ 9 h	-0.29 (-0.71, 0.14)	0.183		-0.11 (-0.77, 0.55)	0.74		-0.41 (-0.97, 0.15)	0.15

Significant results are in bold.

AAC abdominal aortic calcification, CKD chronic kidney disease, eGFR estimated glomerular filtration rate, β effect size, 95% Cl 95% confidence interval.

All subgroups were adjusted for age, gender, race, body mass index, poverty-income ratio, education level, smoking history, alcohol drinking, hypertension, diabetes, CKD, cardiovascular diseases, sedentary time, eGFR, total cholesterol, high-density lipoprotein cholesterol, serum total calcium, serum phosphorus, serum total 25-hydroxyvitamin D, and neutrophil-to-lymphocyte ratio, except the stratification factor itself.