Table 3.

 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.