Progress, duration, and severity of the condition and its symptomatology |
8 |
n = 2 (Nieuwkerk et al., 2012; Al-Haj Mohd et al.,
2016) |
Level of disability caused by the condition at the physical,
psychological, social, and vocational levels |
6 |
n = 3 (Crowley et
al., 2012; Nascimento et al., 2016; Laba et al., 2018) |
Existence of co-morbidities (including depression) |
15 |
n = 3
(Grigoryan et al., 2012; Park et al., 2015; Shankari et al.,
2020) |