Figure 3 | Scientific Reports

Figure 3

From: Estimation bias and agreement limits between two common self-report methods of habitual sleep duration in epidemiological surveys

Figure 3

Estimation bias differences between Method-MCTQwork and Method-MCTQfree. (a) Habitual sleep duration estimation bias values distribution for workdays and free days, percent from group total. Dotted line—HSDMCTQfree, dashed line—HSDMCTQwork. (b) Bland–Altman plot comparing Method-Self and Method-MCTQwork. Notations as in Fig. 1c. The two methods agree within ± 2.3 h. (c) Bland–Altman plot comparing Method-Self and Method-MCTQfree. The two methods agree within ± 2.8 h. Notations as in Fig. 1c.

Back to article page