Table 1 Data categories extracted from titles/abstracts
From: Potential causal factors of CFS/ME: a concise and systematic scoping review of factors researched
Abstract | Diagnostic criteria | Number of participants |
Yes | Not reported | ≤ 30 |
No | CDC 1988 [21] | 31–100 |
WHO Region | CDC/Fukada 1994 [18] | 101–1000 |
Eastern Mediterranean region | Canadian 2003 [9] | ≥ 1,001 |
Not reported | International consensus criteria [10] | Etiological factors (see Additional file 3: Appendix S3 for the complete categorization scheme) |
African region | Arabic Scale of Chronic Fatigue Syndrome [1] | Infections |
European region | Other | Immunological |
Region of the Americas | Study design | Neuroendocrinal/hormonal/metabolic |
South-East Asian region | Not reported | Genetic/epigenetic |
Western Pacific region | Case–control | Circulatory |
Multiple | Cross-sectional | Gastrointestinal |
Comparison group | Cohort (prospective, retrospective) | Neurobiological |
Not reported | Other | Psychological/psychosocial/socioeconomic |
Type unspecified | Other factors | |
Non-patient group | ||
Other patient group | ||
None |