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. Author manuscript; available in PMC: 2017 Jul 6.
Published in final edited form as: Sleep Med. 2016 Jul 6;23:16–20. doi: 10.1016/j.sleep.2016.06.008

Table 1.

History of Insomnia Groups

PLACEBO ZOLPIDEM
N 45 50
Average Age (range) 49.44 (30–70) 49.58 (23–68)
Gender Males: 16 Males: 26
Females: 29 Females: 24
INSOMNIA MEASURES
Reported Sleep Time (hrs) ± SD; median 5.58 ± 1.04
5.50
5.17 ± 1.22
5.25
NPSG Sleep Time (hrs) mean ± SD; median 5.90 ± 0.74
6.02
6.02 ± 0.78
6.12
SL NPSG (min) ± SD median; range 44.26 ± 38.35 35.46 ± 29.32
33; 2–169 26; 5–141
WASO NPSG (min) ± SD median; range 98.44 ± 40.67 95.15 ± 42.26
91.5; 22–185.5 92.0; 24.5–218.5
Age of insomnia onset median; range 38.60
40; 10.5–65
36.46
38.5; 7–58
Duration of insomnia median; range 10.93
7; 1–31
12.92
8; 1–54
SELF REPORTED ALCOHOL AND DRUG CONSUMPTION
Alcohol (drinks/week: N) 0–1: 31 0–1: 31
2–6: 6 2–6: 16
7–14: 7 7–14: 3
16: 1 16: 0
Caffeinated Beverages (drinks/week: N) 0–1: 9 0–1: 13
2–6: 7 2–6: 16
7–14: 16 7–14: 12
16 or more: 13 16 or more: 9
Previous Illicit Drug History No drug history: 31 No drug history: 41
Marijuana use ≥ 2 yrs ago: 3 Marijuana use ≥ 2yrs ago: 5
Marijuana use >10 yrs ago: 10 Marijuana use >10 yrs ago: 4
Cocaine use 20 yrs ago: 1 Cocaine use: 0
Current Nicotine Usage (Cigarettes smoked per day) Non smokers: 37 Non smokers: 41
1–2: 3 1–2: 3
4–5: 2 3–5: 4
>6: 3 >6: 2