“…In addition, some studies have found differences between subgroups of people with schizophrenia in the WHODAS 2.0 scores by variables such as depression (Akinsulore et al, 2015;Dan et al, 2011;Guilera et al, 2012;McKibbin et al, 2004;Sjonnense et al, 2016;Strassnig et al, 2018), symptomatology (Akinsulore et al, 2015;R. Chen et al, 2019;Ertugrul & Ulug, 2004;Guilera et al, 2012;Park et al, 2019;Strassnig et al, 2018), occupational status (Adegbaju et al, 2013;R. Chen et al, 2019;Guilera et al, 2012;Olagunju et al, 2016;Strassnig et al, 2018;), smoking (Aguocha et al, 2018), gender (Adegbaju et al, 2013), years of education and residence (R. Chen et al, 2019), age (Adegbaju et al, 2013;R.…”