From: Preliminary examination of the efficacy and safety of a standardized chamomile extract for chronic primary insomnia: A randomized placebo-controlled pilot study
Characteristics
Chamomile
N = 17
Placebo
Sex, No. (%)
Men
5 (29)
4 (23)
Women
12 (71)
13 (77)
Race, No. (%)
White
14 (82)
Age, mean (SD), years
42.2 (13.5)
40.8 (15.3)