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Table 1 Characteristics of the included studies by type of diagnosis

From: Prevalence of diabetes in Brazil over time: a systematic review with meta-analysis

Study Final year of data collection Type of study Sample size Women (%) Age criterion for study entry (years) City, state, or region Self-reported
Self-reported diagnosis
 Almeida et al. [17] 1997 Cross-sectional 20,287 45.7 30–69 Juiz de Fora, RJ Personally
 Barbosa et al. [18] 2003 Cross-sectional 835 59.7 >18 São Luiz, MA Personally
 Borges et al. [19] 2006 Cross-sectional 972 57.0 20–69 Pelotas, RS Personally
 Capilheira et al. [20] 2003 Cross-sectional 3100 56.6 >20 Pelotas, RS Personally
 Carvalhaes et al. [21] 2005 Cross-sectional 1410 61.4 >18 Botucatu, SP By phone
 Coeli et al. [22] 2001 Cross-sectional 2506 58.8 >30 Rio de Janeiro, RJ Personally
 Correia et al. [23] 2007 Cross-sectional 6431 100.0 20–49 Ceará Personally
 Costa et al. [24] 2005 Cross-sectional 19,252 57.1 >25 Five regions: North, Northeast, Midwest, Southeast, South Personally
 Costa et al. [25] 2000 Cross-sectional 1968 20–69 Pelotas, RS Personally
 Francisco et al. [26] 2008 Cross-sectional 2636 56.7 >18 Campinas, SP Personally
 Freitas et al. [27] 1998 Cross-sectional 217,709 >18 Five regions: North, Northeast, Midwest, Southeast, South Personally
 Freitas et al. [27] 2003 Cross-sectional 254,870 >18 Five regions: North, Northeast, Midwest, Southeast, South Personally
 Freitas et al. [27] 2008 Cross-sectional 271,677 >18 Five regions: North, Northeast, Midwest, Southeast, South Personally
 Fuchs et al. [28] 2005 Cross-sectional 1007 100.0 >18 Porto Alegre, RS Personally
 Gigante et al. [29] 1994 Cross-sectional 1035 56.0 >20 Pelotas, RS Personally
 Iser et al. [30] 2014 Cross-sectional 60,202 >18 Five regions: North, Northeast, Midwest, Southeast, South Personally
 Longo et al. [31] 2007 Cross-sectional 2022 61.5 20–59 Lages, SC Personally
 Machado et al. [32] 2005 Cross-sectional 377 100.0 45–64 Belo Horizonte, MG Personally
 Machado et al. [33] 2011 Cross-sectional 622 100.0 >50 Campinas, SP Personally
 Monteiro et al. [34] 2003 Cross-sectional 2122 59.7 >18 São Paulo, SP By phone
 Moreira et al. [35] 1991 Cohort 982 55.7 >18 Porto Alegre, RS Personally
 Munhoz et al. [36] 2012 Cross-sectional 2925 58.9 >20 Pelotas, RS Personally
 Peixoto et al. [37] 2005 Cross-sectional 2002 62.4 >18 Goiânia, GO By phone
 Pinheiro et al. [38] 2006 Cross-sectional 2420 70.0 >40 Five regions: North, Northeast, Midwest, Southeast, South Personally
 Schellini et al. [39] 2007 Cross-sectional 4690 63.6 >30 São Paulo Personally
 Schmidt et al. [40] 2006 Cross-sectional 54,369 60.8 >18 Five regions: North, Northeast, Midwest, Southeast, South By phone
 Theme-Filha et al. [41] 2003 Cross-sectional 5000 >18 Five regions: North, Northeast, Midwest, Southeast, South Personally
 Vianna et al. [42] 2010 Cross-sectional 2112 57.1 >20 Pelotas, RS Personally
 VIGITEL [43] 2007 Cross-sectional 54,251 60.3 >18 26 Brazilian capitals and Distrito Federal By phone
 VIGITEL [44] 2008 Cross-sectional 54,353 60.6 >18 26 Brazilian capitals and Distrito Federal By phone
 VIGITEL [45] 2009 Cross-sectional 54,367 60.7 >18 26 Brazilian capitals and Distrito Federal By phone
 VIGITEL [46] 2010 Cross-sectional 54,339 61.8 >18 26 Brazilian capitals and Distrito Federal By phone
 VIGITEL [47] 2011 Cross-sectional 54,144 58.2 >18 26 Brazilian capitals and Distrito Federal By phone
 VIGITEL [48] 2012 Cross-sectional 45,448 61.7 >18 26 Brazilian capitals and Distrito Federal By phone
 VIGITEL [49] 2013 Cross-sectional 52,929 61.7 >18 26 Brazilian capitals and Distrito Federal By phone
 VIGITEL [50] 2014 Cross-sectional 40,853 62.0 >18 26 Brazilian capitals and Distrito Federal By phone
Fasting glucose diagnosis
 Cipullo et al. [51] 2005 Cross-sectional 1717 51.2 >18 São José do Rio Preto, SP Fasting capillary glucose
 Makdisse et al. [52] 2004 Cross-sectional 1159 53.3 >18 Five regions: North, Northeast, Midwest, Southeast, South Fasting capillary glucose
 Nunes Filho et al. [53] 2006 Cross-sectional 353 50.7 20–59 Luzerna, SC Fasting glucose
 Passos et al. [54] 1997 Cross-sectional 2310 59.0 >18 Bambuí, MG Fasting glucose
 Rodrigues et al. [55] 2000 Cross-sectional 1346 52.1 25–64 Vitória, ES Fasting capillary glucose
 Schaan et al. [56] 2000 Cross-sectional 992 52.6 >20 Rio Grande do Sul Fasting glucose
 Souza et al. [57] 2001 Cross-sectional 1039 51.0 >18 Campos dos Goytacazes, RJ Fasting glucose
Complex diagnosis
 Bosi et al. [58] 2008 Cross-sectional 1116 64.5 30–79 São Carlos, SP Capillary glycemia <200 mg/dL → OGTT
 Malerbi et al. [59] 1988 Cross-sectional 21,847 59.0 30–69 Five regions: North, Northeast, Midwest, Southeast, South Capillary glycemia <200 mg/dL → OGTT
 Moraes et al. [60] 2007 Cross-sectional 2182 >30 Ribeirão Preto, SP Capillary glycemia <200 mg/dL → OGTT
 Oliveira et al. [61] 1989 Cross-sectional 2051 57.2 30–69 Rio de Janeiro, RJ Capillary glycemia → OGTT
 Rodrigues Júnior. et al. [62] 2011 Cross-sectional 1429 57.9 30–69 Campo Grande, MS Capillary glycemia <200 mg/dL → OGTT OGTT >200 mg/dL → diabetes Capillary glycemia >200 mg/dL → diabetes
 Schmidt et al. [63] 2010 Cohort 15,105 54.4 35–74 Northeast, Southeast, South. Self-report or fasting glycemia ≥126 mg/dL or OGTT ≥200 mg/dL or HbA1c ≥6.5 %
 Torquato et al. [64] 1997 Cross-sectional 1473 66.5 30–69 Ribeirão Preto, SP Capillary glycemia → OGTT