Table 1 Defining variables used in the Wichita and Georgia studies
From: Replication of an empirical approach to delineate the heterogeneity of chronic unexplained fatigue
Wichita | Georgia |
|---|---|
Unrefreshing sleep | Unrefreshing sleep |
Sleep problems | Sleep problems |
Post-exertional fatigue | Post-exertional fatigue |
Muscle pain | Muscle pain |
Joint pain | Joint pain |
Severe headache | Headache |
Concentration | Concentration |
Photophobia | Photophobia |
Sore throat | Sore throat |
Shortness of breath | Shortness of breath |
Stomach or abdominal pain | Stomach or abdominal pain |
Fever | Fever |
Nausea | Nausea |
Depression (Zung score) | Depression (Zung score) |
Sleepiness (Epworth score) | Sleepiness (Epworth score) |
O2saturation | Â |
Sleep resp. disturbance index | Â |
Sleep-total time | Â |
Sleep-total arousals | Â |
Sleep-HR variability | Heart rate at rest |
Sleep REM latency | Â |
Age | Age |
Body mass index | Body mass index |
Neck circumference | Neck circumference |
High sensitivity CRP | High sensitivity CRP |
Serum insulin | Serum insulin |
Free T3 | Â |
Progesterone | Â |
Free testosterone | Â |
24 hours Urinary free cortisol | Cortisol index |
Hemoglobin | Hemoglobin |
Bilirubin | Bilirubin |
AST | AST |
IL-6 | Â |
IL-1b | Â |
Igf-1 | Â |
Tilt BP_5min_stand_index | Systolic blood pressure |