“…Among the 35 included studies published until January 2023, 19 are cross‐sectional studies (Gamel et al., 2017; Hashimoto et al., 2021a, 2021b; Hatipoğlu et al., 2022; Jung et al., 2018; Kordtabar et al., 2019; Mayer et al., 2009, 2013; Mirrielees et al., 2010; Nik‐Azis et al., 2021; Ortiz et al., 2009; Pischon et al., 2008; Renvert et al., 2020; Romero‐Sanchez et al., 2017; Rovas et al., 2021; Schmalz et al., 2021; Wu et al., 2021; Yamashita et al., 2020; Ziebolz et al., 2018), 6 are case control studies (Äyräväinen et al., 2017, 2018a, 2018b; de Smit et al., 2021; Kobayashi et al., 2015; Kobayashi, Okada et al., 2014); 8 are longitudinal studies (Ancuta et al., 2017, 2020, 2021; Fabri et al., 2015; Kadkhoda et al., 2016; Kobayashi, Yokoyama et al., 2014; Savioli et al., 2012; Üstün et al., 2013), and 2 are cross‐sectional and longitudinal analyses in the one and the same article (Coat et al., 2015; Pers et al., 2008). All the studies were prospective except for one cross‐sectional study (Yamashita et al., 2020).…”