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. 2017 Oct 19;12(10):e0186233. doi: 10.1371/journal.pone.0186233

Table 1. Descriptive statistics for those providing self-report data and those providing objective sleep data.

Full sample (N = 348) Participants who wore a sleep monitor (N = 91)
Variable Mean SD Min-max Mean SD Min-maxa
Age 36.49 12.76 17–77 29.87 12.95 17–60
Total insomnia 17.78 5.29 8–32 17.48 5.24 9–30
Sleep onset 8.54 3.04 4–16 8.56 3.13 4–16
Sleep maintenance 9.24 3.08 4–16 8.92 3.06 4–16
Negative affect 12.52 11.42 0–63 12.93 11.97 0–59
Paranoia 18.48 5.8 16–76 18.85 5.23 16–39
Total sleep timeb (hours) - - - 6.96 1.01 3.65–9.33
Sleep latencyb (minutes) - - - 21.35 14.65 2.6–61.83
Number of awakeningsb - - - 3.23 2.62 0–11

a Refers to the minimum and maximum score reported by participants

b All objective sleep outcomes are based on mean recordings over 7 nights.