Table 2

Relation between frequency of angina and mean Swedish quality of life survey (SWED-QUAL) scores (minimum score is 0; maximum score is 100) among Swedish patients with chronic stable angina four years following coronary revascularisation

Frequency of angina during preceding four weeks
Questionnaire componentNone<3 a week≥3 a weekp Value
Physical functioning887666<0.001
Relief from pain907452<0.001
Quality of sleep705744<0.001
Emotional wellbeing796758<0.001
General health perception766246<0.001