HRs for the association between shift work and incident AF during extensive follow-up of up to 31 years: the Tromsø Study
| HR (95% CI) | P value |
| Model 1: unadjusted | |
| 0.88 (0.76 to 1.02) | 0.083 |
| Model 2: adjusted for age and sex | |
| 1.07 (0.92 to 1.23) | 0.385 |
| Model 3: adjusted for age, sex and CHARGE-AF risk model | |
| 1.03 (0.89 to 1.20) | 0.675 |
| Model 4: adjusted for age, sex, CHARGE-AF risk model, education level and physical activity | |
| 1.02 (0.88 to 1.19) | 0.773 |
HRs and p values represent the association between shift work and incident AF during extensive follow-up (number of AF cases=1244) in the total study population (n=22 339). Components of the CHARGE-AF risk model were weight, height, systolic and diastolic blood pressures, antihypertensive drug use, diabetes, smoking and history of myocardial infarction.
AF, atrial fibrillation.