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Table 2 Social, health and physical inactivity correlates of CFS (univariate)a

From: Chronic fatigue syndrome in an ethnically diverse population: the influence of psychosocial adversity and physical inactivity

CFS correlate Percentage (n/N), unweighted OR (95% CI), weighted
Social support   
Confiding/emotional support   
   Low 3.1 (35/1,132) 1
   Average 2.3 (38/1,675) 0.7 (0.4 to 1.3)
   High 2.4 (33/1,398) 0.8 (0.5 to 1.5)
Practical support   
   Low 1.9 (16/861) 1
   Average 2.1 (28/1,317) 0.99 (0.5 to 2)
   High 3.1 (62/2,032) 1.4 (0.7 to 2.7)
Negative aspects of support   
   Low 0.6 (4/631) 1
   Average 2 (30/1,472) 2.3 (0.7 to 7.6)
   High 3.4 (72/2,103) 4 (1.2 to 12.4)b
Chronic strains   
   Tertiles of total score   
   Low 0.9 (9/1,023) 1
   Average 2.2 (46/2,124) 2.3 (1.04 to 5)b
   High 4.8 (53/1,100) 4.9 (2.2 to 10.6)c
Perceived discrimination   
   Total score (means) - 1.5 (1.1 to 2)d
Mental health (CIS-R subscales)   
   Depression score - 2.2 (1.9 to 2.6)c
   Anxiety score - 2.2 (1.9 to 2.6)c
   Physical inactivity   
Days of moderate activity of ≥30 minutes/day in past 4 weeksb   
   5 or more (high) 1.4 (16/1,126) 1
   1 to 4 (medium) 1.3 (16/1,256) 1.02 (0.4 to 2.3)
   1 or <1 (low) 4 (75/1,883) 3.3 (1.7 to 6.2)
Activity intensity   
   Moderate/vigorous 1.7 (55/3,217) 1
   Inactive/light 5.7 (53/926) 4.6 (2.9 to 7.2)
  1. aCFS, chronic fatigue syndrome; OR, odds ratio; 95% CI, 95% confidence interval; CIS-R, Revised Clinical Interview Schedule; b P ≤ 0.05; c P ≤ 0.001; d P ≤ 0.01.