Table 5 The relative hazards of idiopathic cardiomyopathy (ICD9 = 425.4; ICD10 = I42.0) in the diabetic and control groups (Fine and Gray's method)

General characteristics

 Type 2 diabetes

1.96 (1.79–2.14)

1.60 (1.45–1.77)

 Age

  < 45

1.0

1.0

  45–64

1.23 (1.08–1.41)

0.99 (0.87–1.14)

  > 64

2.03 (1.77–2.32)

1.32 (1.13–1.53)

 Sex

  Female

1.0

1.0

  Male

1.34 (1.23–1.46)

1.42 (1.30–1.55)

 Urbanization status

  Urban area

1.0

1.0

  Rural area

1.38 (1.26–1.5)

1.22 (1.12–1.34)

 Comorbidities

  Ischemic heart disease

6.54 (6.01–7.12)

4.60 (4.13–5.12)

  Hypertensive disease

2.18 (2–2.37)

0.86 (0.75–0.99)

  Rheumatic heart disease

9.02 (7.77–10.47)

2.41 (2.03–2.86)

  Valvular heart disease

6.68 (6.03–7.41)

2.94 (2.59–3.34)

  Congenital heart disease

4.83 (3.48–6.72)

2.03 (1.45–2.85)

  Acute myocarditis

22.75 (11.9–43.48)

7.81 (3.91–15.6)

  Obesity

1.12 (0.84–1.51)

1.06 (0.78–1.42)

  Stroke

1.43 (1.29–1.58)

0.74 (0.66–0.82)

  Hyperlipidemia

1.14 (1.05–1.24)

0.60 (0.55–0.66)

 Antihypertensive medication

  β-Blocker

3.34 (3.06–3.63)

1.70 (1.54–1.88)

  ACEi

3.47 (3.18–3.78)

2.01 (1.80–2.25)

  ARBs

2.43 (2.23–2.64)

1.26 (1.11–1.43)