Table 2

Coronary artery disease in subjects referred for coronary arteriography from the open access chest pain clinic

Exercise test finding		Number of subjects			Subjects with significant coronary artery disease (%)		Subjects with prognostic coronary artery disease (%)
Exercise test finding		Male	Female		Male	Female	OR (95% CI)	Male	Female	OR (95% CI)
All subjects	286	137		83.6	43.8	6.5 (4.1 to 10.3)^2-160	43.0	16.1	3.9 (2.4 to 6.6)^2-160
⩾ 2 mm ST depression	104	25		95.2	72.0	7.7 (2.2 to 26.9)^2-160	56.7	16.0	6.9 (2.2 to 21.5)^2-160
< 2 mm ST depression	89	52		87.6	51.9	6.6 (2.9 to 15.1)^2-160	51.7	21.2	4.0 (1.8 to 8.7)^2-160
⩾ 1 mm ST depression	163	60		93.9	65.0	8.2 (3.6 to 18.9)^2-160	56.4	21.7	4.7 (2.4 to 9.3)^2-160
< 1 mm ST depression	30	17		80.0	35.3	7.3 (1.9 to 27.9)^2-165	43.3	11.8	5.7 (1.1 to 29.6)^2-150
Other ECG changes^2-151	14	6		78.6	50.0	3.7 (0.5 to 28.4)	28.6	0
Pain but no ECG change	41	23		70.7	21.7	8.7 (2.6 to 28.8)^2-160	14.6	13.0	1.1 (0.3 to 5.1)
No pain and no ECG change	38	31		57.9	22.6	4.7 (1.6 to 13.6)^2-165	21.1	12.9	1.8 (0.5 to 6.7)
Stage exercise test stopped^2-152
Stage I and II	18	17		66.7	29.4	4.8 (1.1 to 20.1)^2-150	33.3	17.6	2.3 (0.5 to 11.4)
Stage III and IV	16	9		43.8	11.1	6.2 (0.6 to 62.2)	6.3	11.1	0.5 (0.0 to 9.7)

↵2-151 ST elevation, T wave inversion or arrhythmia (in the absence of ST depression).
↵2-152 For subjects without any ECG changes or pain and whose exercise test was the full Bruce protocol.
↵2-150 p < 0.05;
↵2-160 p < 0.01;
↵2-165 p < 0.001.