Table 3.

Geometric means of urinary aMT6s (μg/g Cr) by time of specimen collection and by sleep duration in all control women and postmenopausal control women by BMI

	All control
Time of specimen collection-control1	No.	aMT6s Mean	95% CI
8:00–8:59	1	6.00	0.93–38.56
9:00–9:59	197	1.62	1.42–1.85
10:00–10:59	187	1.28	1.12–1.47
11:00–11:59	191	1.14	1.00–1.31
12:00–12:59	149	0.97	0.83–1.13
13:00–16:00	18	0.70	0.46–10.9
p trend			<0.0001

Hours of sleep control2	All controls			Postmenopausal women BMI ≤ 23.2			Postmenopausal women, BMI ≤ 23.2
	No	aMT6s Mean	95% CI	No	aMT6s Mean	95% CI	No	aMT6s Mean	95% CI
≤6	245	1.15	1.02–1.30	118	1.21	1.03–1.44	115	1.13	0.94–1.36
7	242	1.30	1.14–1.46	131	1.26	1.08–1.48	95	1.36	1.12–1.67
8	205	1.28	1.13–1.46	100	1.03	0.86–1.24	84	1.51	1.22–1.88
9+	51	1.20	0.92–1.55	25	1.09	0.76–1.57	21	1.49	0.97–2.28
p trend			0.380			0.22			0.059

¹Adjusted for age and case/control status (if applicable).

²Adjusted for age, case/control status (if applicable) and time of specimen collection.