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. 2009 Jan 1;32(1):55–64.

Table 3.

ANOVA Analysis of Mean Costs Per Person of Prescription Medications, Over-the-Counter Products, and Alcohol Used as a Sleep Aid (Cdn$; N = 948)

Category Good Sleepers (n = 493) Mean (SD) Symptoms (n = 308) Mean (SD) Syndrome (n = 147) Mean (SD) F P
Prescription Medications ($)
    Overall 64.69 (256.28)a 77.14 (175.13)a 133.61 (454.57)b 3.43 0.033
    Insomnia 0.01 (0.10)a 0.81 (13.48)a 5.05 (19.26)b 12.07 0.000
    Mood 2.17 (18.18)a 3.45 (24.65)a 11.15 (47.79)b 6.18 0.002
    Anxiety 2.09 (20.78)a 2.78 (20.24)a 11.13 (43.03)b 7.08 0.001
OTC products ($)
    Overall 7.61 (31.86) 11.54 (85.84) 9.51 (25.88) 3.42 0.620
    Insomnia 0.02 (0.25)a 0.11 (0.83)a 0.40 (1.81)b 10.70 0.000
    Anxiety 0.01 (0.14)a 0.03 (0.27)a 0.47 (0.54)b 5.82 0.003
Alcohol used as a sleep aid ($)
    Overall 5.63 (39.72) 31.09 (76.95) 23.70 (59.43) 5.29 0.006