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Table 4 Hazard ratios (HR) for disability pension due to mental diagnoses, discordant twin pairs

From: A prospective cohort study of disability pension due to mental diagnoses: the importance of health factors and behaviors

Self-rated health and health behaviors Discordant twin pairs HR (95% CI)
Monozygotic & dizygotic1 (n=229) Monozygotic2 (n=95) Dizygotic3 (n=134)
Self-rated health
Good 1.00 1.00 1.00
Moderate 1.70 (1.04-2.78) 1.73 (0.76-3.95) 1.68 (0.91-3.13)
Poor 5.65 (2.81-11.4) 8.21 (2.37-28.5) 4.57 (1.95-10.7)
Leisure-time physical activity
High 1.00 (0.49-2.06) 0.80 (0.21-2.98) 1.23 (0.52-3.01)
Moderate 1.00 1.00 1.00
Low 1.00 (0.54-1.84) 1.00 (0.35-2.85) 1.03 (0.49-2.18)
Body mass index
Underweight 1.88 (0.44-8.01) 1.00 (0.06-15.7) 2.44 (0.43-13.9)
Normal weight 1.00 1.00 1.00
Overweight 2.48 (1.43-4.30) 1.98 (0.84-4.64) 2.96 (1.42-6.15)
Obesity 2.28 (0.88-5.87) 2.61 (0.38-18.3) 2.25 (0.75-6.74)
Tobacco use
Never tried 1.00 1.00 1.00
Former 1.38 (0.44-4.25) 0.71 (0.13-3.92) 2.17 (0.44-10.7)
Current occasional 0.77 (0.40-1.47) 0.98 (0.35-2.77) 0.70 (0.30-1.65)
Current regular 1.06 (0.53-2.11) 1.10 (0.38-3.17) 1.11 (0.44-2.76)
Alcohol consumption
Abstainer 2.17 (1.06–4.45) 1.93 (0.54-6.96) 2.63 (1.05–6.62)
Light frequent 1.00 1.00 1.00
Moderate frequent 1.24 (0.53-2.91) 0.46 (0.11-1.87) 2.70 (0.81-9.02)
Heavy frequent 0.48 (0.12-1.90) Not enough pairs 0.46 (0.09-2.36)
Light infrequent 3.67 (0.91-14.8) 2.80 (0.24-32.6) 3.98 (0.71-22.4)
Moderate infrequent 1.03 (0.55-1.93) 0.52 (0.18-1.49) 1.71 (0.75-3.91)
Heavy infrequent 2.10 (0.99-4.46) 1.09 (0.33-3.53) 3.61 (1.28–10.2)
  1. 1Adjusted for age, sex, genetics (50-100%) and shared environment (100%).
  2. 2Adjusted for age, sex, genetics (100%) and shared environment (100%).
  3. 3Adjusted for age, sex, genetics (50%) and shared environment (100%).