TABLE 3.

Objective Evaluation of Sleep (Actigraphy)

Variables	Global, n = 65
Sleep
Total sleep time, hr	6.98 (6.33–7.67)
> 9	3 (4.62%)
7–9	29 (44.6%)
< 7	33 (50.8%)
Time in bed, hr	8.38 (7.73–9.10)
Sleep efficiency, %	84.6 (81.0–88.3)
≥ 85	29 (44.6%)
75–84	29 (44.6%)
< 75	7 (10.8%)
Latency, min	10.0 (5.00–18.0)
≤ 30	57 (87.7%)
31–45	6 (9.23%)
> 45	2 (3.08%)
Arousals, number	25.5 (7.07)
Wake after sleep onset, min	51.0 (39.0–66.0)
0–20	1 (1.54%)
21–40	17 (26.2%)
≥ 40	47 (72.3%)
Rest-activity rhythm
Interdaily stability	0.59 (0.13)
Intradaily variability	0.81 (0.19)
Relative amplitude	0.89 (0.85–0.93)
The mean activity of the 10 consecutive hr with more activity	238 (170–315)
The mean activity of the 5 consecutive hr with less activity	12.2 (8.46–19.6)

Qualitative data are represented as n (%). The means (sd) and medians (25th–75th percentile) were estimated for variables with normal and non-normal distributions, respectively.