28-day case fatality (1991–2007) | CVD mortality (mean 1919 days) | All-cause mortality (mean 1816 days) | ||||
---|---|---|---|---|---|---|
N=2156, 233 cases | N=1923, 74 cases | N=1923, 146 cases | ||||
OR (95% CI) | HR (95% CI) | HR (95% CI) | ||||
Adjusted for | Medium IQ | Low IQ | Medium IQ | Low IQ | Medium IQ | Low IQ |
Age | 1.33 (0.93 to 1.90) | 1.46 (0.98 to 2.18) | 1.94 (0.97 to 3.88) | 2.32 (1.12 to 4.85) | 1.74 (1.08 to 2.80) | 2.20 (1.33 to 3.64) |
+ Early life factors (potential confounders)* | 1.31 (0.91 to 1.88) | 1.42 (0.94 to 2.14) | 2.01 (1.00 to 4.06) | 2.48 (1.17 to 5.27) | 1.76 (1.09 to 2.84) | 2.23 (1.33 to 3.73) |
+ Factors in adolescence and adulthood (potential mediators)† | 1.06 (0.73 to 1.55) | 0.97 (0.62 to 1.50) | 1.92 (0.94 to 3.94) | 1.98 (0.89 to 4.37) | 1.63 (1.00 to 2.65) | 1.62 (0.94 to 2.78) |
High IQ is the reference in all analyses.
*Childhood socioeconomic position, parent’s CVD death at age <65.
†BMI, smoking, risk use of alcohol, systolic blood pressure, occupational class, income, single household and comorbidity/complications.
BMI, body mass index; CHD, coronary heart disease; CVD, cardiovascular diseases.