Table 2.
Study characteristics of the included studies.
| Author | Study Design | Year | Disease | Study Duration | Sample Size | Age, Mean (SD) | Men (%) |
|---|---|---|---|---|---|---|---|
| Colls J. et al. | RCT | 2020 | Rheumatoid Arthritis | 6 months | 78 | 55 (10.7) | 15 (19%) |
| Jamilloux Y. et al. | Prospective uncontrolled study | 2015 | SLE, primary Sjögren and IBD | 6 months | 128 | 42 (median) | 27 (21%) |
| Rosen D. et al. | Prospective uncontrolled study | 2017 | Heart failure | 4 months | 50 | 61 (-) | 14 (29%) |
| Guzman, J.R.S. et al. | Retrospective cohort study | 2013 | Heart failure | 3 months | 248 | 76 (7.1) | 240 (97%) |
| Ross, E.L. et al. | Retrospective cohort study | 2020 | Chronic pain | 3 months | 253 | 51 (14) | 71 (28%) |
* SLE = Systemic Lupus Erythematosus, IBD = Inflammatory Bowel Disease, COPD = Chronic Obstructive Pulmonary Disease.