We concur with Čvorović that reliable data regarding chronic disease prevalence and incidence among Roma due to lack of official demographics remain non-existent (Čvorović, Reference Čvorović2019). It is, however, worth pointing out the similarity between the female prevalence of diabetes mellitus observed in Coe and Čvorović (Reference Coe and Čvorović2017) (11.8%) and in Čvorović (Reference Čvorović2018) (9.66%), even with a self-reported health status, and that found by Živković et al. (Reference Živković, Marjanović, Prgomelja, Soldatović, Koprivica, Acković and Živković2010) among members of the Roma community from eight rural and eleven urban settlements in Serbia (11.1%). These in turn seem higher compared with the majority population in Serbia (Ministry of Health, 2007) as well as that seen in the country´s female population (Jovic et al., Reference Jovic, Vukovic and Marinkovic2016), and are concordant with the results of other studies (Nunes et al., Reference Nunes, Kučerová, Lukáč, Kvapil and Brož2018).

The research of Čvorović is of substantial importance. We respectfully suggest considering enriching it with diabetes mellitus screening according to the 1999 WHO diagnostic criteria (fasting plasma glucose (FPG) ≥7.0 mmol/l or random plasma glucose ≥11.1 mmol/l or plasma glucose 2-h post-glucose load (OGTT) ≥11.1 mmol/l) (World Health Organization, 1999) in a future study.

It should also be mentioned that different types of diabetes mellitus than the most common type 2, with a prevalence of more than 90% (Bullard et al., Reference Bullard, Cowie, Lessem, Saydah, Menke and Geiss2018), may be present in the study population, such as type 1 or those based on diseases of the exocrine pancreas, liver or even Maturity Onset Diabetes of the Young (Stanik et al., Reference Stanik, Kusekova, Huckova, Valentinova, Masindova and Stanikova2012; American Diabetes Association, 2015; Urbanová et al., Reference Urbanová, Brunerová and Brož2018). The precise diagnosis of these is usually based on the patient´s health history.

A measurement of HbA1c levels could be further suggested in order to evaluate the level of metabolic control of diabetes in previously diagnosed Roma individuals, which is already subpar in the majority population and to the best of our knowledge has never been studied among Roma populations (Pablos-Velasco et al., Reference Pablos-Velasco, Parhofer, Bradley, Eschwege, Gonder-Frederick and Maheux2014; Brož et al., Reference Brož, Janíčková Žďárská, Urbanová, Brabec, Doničová and Štěpánová2018). Such a study would not only provide new knowledge on this important topic, but also probably contribute to the better health of the individuals tested.