Table 3.

Total diagnostic delay: univariate analysis

Variable	Late diagnosis ≥7 days
	Odds ratio	95% CI	P-value
Age >65 years	1.28	0.74 to 2.24	0.38
Male sex	1.04	0.60 to 1.80	0.90
Comorbidity	1.78	1.00 to 3.19	0.05a
Symptoms
Dyspnoea	2.62	1.17 to 5.87	0.02a
Chest pain	0.46	0.26 to 0.80	0.01a
Cough	1.54	0.86 to 2.76	0.15a
Haemoptysisb	––	–
Fever	0.83	0.37 to 1.85	0.65
Calf pain	0.53	0.27 to 1.05	0.07a
Signs
Tachycardiac	0.76	0.41 to 1.43	0.40
Rales	0.67	0.30 to 1.47	0.31
Decreased breath sounds	0.49	0.16 to 2.34	0.20a
Signs of DVT	0.68	0.34 to 1.35	0.27
Risk factors
Previous DVT/PE	1.07	0.53 to 4.37	0.86
Known malignancy	0.72	0.28 to 1.84	0.49
Surgery or traumad	0.53	0.20 to 1.45	0.22
Thrombophiliab	––	–

^aP≤0.20, therefore data included in multivariate logistic regression analysis (see Table 4).

^bNo analysis due to lack of data.

^cTachycardia defined as heart rate >100 beats per minute.

^dSurgery or trauma in the previous 4 weeks. DVT = deep venous thrombosis. PE = pulmonary embolism.