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Table 2 Detailed breakdown of characteristics of patients with insomnia

From: Chronic fatigue syndrome and fibromyalgia in diagnosed sleep disorders: a further test of the ‘unitary’ hypothesis

Insomnia (n = 21)
Men (n = 8) No CFS/FM =4 → Beck ≥ 20 = 1 → ESS ≥ 16 = 0; ESS < 16 = 1
   Beck < 20 = 3 → ESS ≥ 16 = 0; ESS < 16 = 3
    CFS/FM = 4 → Beck ≥ 20 = 2 → ESS ≥ 16 = 1; ESS < 16 = 1
   Beck < 20 = 2 → ESS ≥ 16 = 0; ESS < 16 = 2
Women (n = 13) No CFS/FM =7 → Beck ≥ 20 = 1 → ESS ≥ 16 = 0; ESS < 16 = 1
   Beck < 20 = 6 → ESS ≥ 16 = 0; ESS < 16 = 6
    CFS/FM = 6 → Beck ≥ 20 = 3 → ESS ≥ 16 = 1; ESS < 16 = 2
   Beck < 20 = 3 → ESS ≥ 16 = 1; ESS < 16 = 2
  1. We are presenting the Beck data stratified by scores of 20 or higher. An analysis stratifying with scores of 14 or higher produced very similar results. We are presenting data stratifying the ESS data by scores 16 or higher; this was the median value for SDB patients fulfilling diagnostic criteria for CFS and/or FM.