Skip to main content

Table 1 Comparisons between the previous and present study on fish consumption and risk of stroke in Northern Sweden Health and Disease Study

From: Fish consumption and risk of stroke: a second prospective case-control study from northern Sweden

 

Previous study (Wennberg et al. 2007 [8])

Present study

Baseline

1986–1999

1986–2005

Number of cases/controls

369/738

735/2698

Cases diagnos year

1986–2000

1987–2007

Exclusions

any stroke, MI or cancer before baseline

any stroke before baseline, inclusion as case in the previous study

Fish consumption data

FFQ data; lean and fatty fish, blood concentrations of EPA, DHA and mercury

FFQ data; lean and fatty fish

Adjustment variables

Smoking, hypertension, serum-cholesterol, diabetes diagnosis, BMI, education

All in the previous study and alcohol consumption, consumption of fruit and vegetables, level of physical activity, civil status