Table 3 Hierarchical multiple logistic regression analysis of sociodemographic and laboratorial data associated with the presence of autoimmune diseases

Sociodemographic level (Model 1)

Female (Ref.: Male)

1.270–2.311

 < 0.001

Age, years (Ref.: < 19)

 19 up to < 30

1.233–3.53

0.006

 ≥ 30 to < 40

1.349–4.158

0.003

 ≥ 40

1.953–6.394

 < 0.001

Self-reported skin-color (Ref.: Black)

 White

2.077–8.444

 < 0.001

 Brown

1.474–6.178

0.003

Level of care (Ref.: Secondary)

 Tertiary

0.741–1.757

0.548

Diabetes duration, years

1.000–1.036

0.047

Time of follow up, years

0.976–1.016

0.662

Geographic region (Ref. Mid-West)

 Southeast

0.596–1.925

0.818

 South

0.537–2.156

0837

 North/Northeast

0.288–0.849

0.01

Economic status (Ref. High)

 Medium

0.359–1.798

0.594

 Low

0.301–1.523

0.346

 Very low

0.117–1.838

0.274

Laboratorial data (Model 2)

C-reactive protein (mg/dl)

0.779–1.073

0.545

Anti-TPO UI/ml^** (Ref. < 35)

 ≥ 35

5.756–10.309

 < 0.001