From: The differential diagnosis of tiredness: a systematic review
First author, year | Country | Sample size | Symptom definition | Anaemia | Malignancy | Severe somatic disease | Depression | CFS |
---|---|---|---|---|---|---|---|---|
Friedlander, 1962 [43] | USA | 71 | “Unbearable fatigue” | |||||
Morrell, 1972 [29] | GB | 58 | New symptom that wasn’t brought up at a doctor’s visit during the last 12 months, main reason for encounter | X | ||||
Morrison, 1980 [15] | USA | 176 | Cause unknown | X | X | X | ||
Jerrett, 1981 [16] | GB | 300 | Tiredness as a central problem (“tiredness”, “need of tonic”, “run down”, etc.) | X | X | X | X | |
Sugarman, 1984 [17] | USA | 118 | Cause unknown | X | X | X | ||
Knottnerus, 1986 [44] | NL | 174 | New Symptom | X | ||||
Nelson, 1987 [45] | USA | 71 | At least 1 month, main reason for encounter | |||||
Kroenke, 1989 [46] | USA | 82 | 3-year incidence of the symptom of 1000 randomly selected patient files | |||||
Valdini, 1989 [3] | USA | 22 | Since at least 1 year, cause unknown | X | X | X | ||
Kirk, 1990 [30] | USA | 71 | Since at least 1 month, important problem | X | ||||
Cathebras, 1992 [2] | CDN | 93 | Through direct questioning (“Why did you come here today?”) or if the doctor indicated that tiredness was a reason for encounter | X | X | X | ||
Elnicki, 1992 [18] | USA | 52 | Since > 1 month, cause unknown, main reason for encounter | X | X | X | X | |
Gerber, 1992 [14] | USA | 88 | Tiredness as one of the chief complaints | X | ||||
Ridsdale, 1993 [47] | GB | 220 | “being knackered, lethargic, run down or tired all the time”, since at least 2 weeks, main reason for encounter | X | X | X | ||
Fuhrer, 1994 [5] | F | 287 | Since at least 2 weeks | X | ||||
Hall, 1994 [19] | GB | 197 | Diagnosis of tiredness in the patient’s file | X | ||||
Maeno, 2002 [20] | J | 157 | “General fatigue”, main reason for encounter | X | ||||
Andrea, 2003 [48] | NL | 322 | “Fatigue-related visite” | X | ||||
Darbishire, 2003 [11] | GB | 141 | Since at least 6 months, cause unknown | X | X | |||
Gialamas, 2003 [49] | AUS | 342 | “Tiredness”, “fatigue”, “weariness”, “weakness”, “lethargy” or “malaise” in patient’s record | X | X | |||
Kenter, 2003 [21] | NL | 10.297 | Episodes of care with tiredness as the reason for encounter | X | X | |||
Vital Durand, 2004 [50] | F | 120 | Since at least 6 months, cause unknown | |||||
Belanger, 2005 [51] | CDN | 36 | “Fatigue” (no precise definition) | |||||
Kenter, 2007 [12] | NL | 385 | Diagnosis “tiredness” | X | ||||
Koch, 2009 [35] | NL | 296 | New symptom, cause unknown | X | X | |||
Nijrolder, 2009 [22] | NL | 571 | New symptom (no encounter due to tiredness in the last 6 months), main reason for encounter | X | X | X | X | X |