Table 2. Odds ratio (95% confidence intervals) for incident angina and ischaemia at second screening by reported stress category at first screening (low stress as baseline, mean follow up period 5 years 2 months)

Perceived stress No of participants Adjusted for age only Adjusted for age, social class, screening interval, and risk factors^*

Incident angina:

  High stress 312 2.32 (1.43 to 3.78) 2.66 (1.61 to 4.41)

  Medium stress 1338 1.22 (0.82 to 1.82) 1.37 (0.91 to 2.08)

  Low stress 837 1.00 1.00

  P for trend 0.002 <0.001

Incident ischaemia:

  High stress 337 0.63 (0.34 to 1.15) 0.67 (0.36 to 1.26)

  Medium stress 1349 1.04 (0.73 to 1.48) 1.03 (0.71 to 1.49)

  Low stress 815 1.00 1.00

  P for trend 0.27 0.37

^* Risk factors: smoking (cigarettes per day, past, current, never smokers), alcohol consumption (0, >0-15, $>=$ 15 units weekly), weekly hours of exercise, cholesterol concentration (mmol/l), diastolic blood pressure (mm Hg), body mass index (kg/m²), percentage of forced expiratory volume in one second. Participants with missing values excluded.

Excluding participants who had angina at first screening and those not screened twice.

Excluding participants who had ischaemia at first screening and those not screened twice.