MULTIPLE LINEAR REGRESSION, COEFFICIENT ESTIMATES (95% CI) | LOGISTIC REGRESSION, OR (95% CI)* | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
FACTORS | PHYSICAL FUNCTIONING (N = 122) | EMOTIONAL WELL-BEING (N = 128) | ENERGY AND FATIGUE (N = 128) | SOCIAL FUNCTIONING (N = 128) | BODILY PAIN (N = 128) | GENERAL HEALTH (N = 128) | PHYSICAL ROLE LIMITATIONS (N = 128) | EMOTIONAL ROLE LIMITATIONS (N = 128) | ||||||
Male sex | - | - | −0.72 (−1.23 to −0.13) | −1.00 (−1.60 to −0.39) | - | - | 0.20 (0.06 to 0.59) | - | ||||||
Unmarried | - | 0.53 (0.03 to 1.03) | - | - | - | - | - | - | ||||||
Supplementary health coverage | - | - | - | 0.29 (0.05 to 0.52) | - | - | - | - | ||||||
Sleep disorder diagnosed | - | −0.66 (−1.24 to −0.08) | - | - | - | - | - | - | ||||||
Age at symptom onset, y | 0.029 (0.008 to 0.047) | - | - | - | - | 0.04 (0.02 to 0.05) | - | - | ||||||
Last felt well, mo | - | - | - | - | - | - | - | 0.994 (0.989 to 0.999) | ||||||
No. of visits to any physician (past 12 mo) | −0.014 (−0.026 to −0.001) | - | - | - | - | - | - | - | ||||||
No. of visits to family physician (past 12 mo) | - | - | - | - | - | −0.032 (−0.058 to −0.006) | - | - | ||||||
Nothing helpful in dealing with health condition | - | - | - | −0.99 (−1.78 to −0.20) | - | - | - | - | ||||||
Avoiding triggers found helpful | - | - | - | - | - | - | - | 2.61 (1.11 to 6.14) | ||||||
Hours paid work/wk | 0.020 (0.005 to 0.035) | - | - | - | - | - | - | - | ||||||
Census average of dwelling values/$1000 | 0.0024 (0.0006 to 0.0043) | - | - | 0.0006 (0.0002 to 0.0027) | 0.0019 (0.0004 to 0.0037) | - | - | - | ||||||
MCS diagnosed | - | - | - | - | 0.19 (0.07 to 0.83) | - | - | - | ||||||
CFS diagnosed | −0.67 (−1.17 to −0.17) | −1.04 (−1.56 to −0.52) | - | - | - | - | - | - | ||||||
FM diagnosed | −0.92 (−1.44 to −0.40) | −0.71 (−1.24 to −0.18) | −0.91 (−1.32 to −0.51) | −0.92 (−1.33 to −0.51) | −0.20 (−1.42 to −0.65) | - | - | 0.35 (0.16 to 0.76) | ||||||
Adjusted R2 | 0.377 | 0.233 | 0.142 | 0.222 | 0.306 | 0.215 | NA | NA |
CFS–chronic fatigue syndrome, CI–confidence interval, EHC–Environmental Health Clinic, FM–fibromyalgia, MCS–multiple chemical sensitivity, NA–not applicable, OR–odds ratio.
↵* Role limitations due to physical health and emotional problems have nonnormal distributions owing to a clustering of values at zero. Linear regression was therefore inappropriate; z scores for these scales have been dichotomized at the median, and ORs corresponding to a score greater than or equal to the median and associated 95% CIs are reported.