Table 7.

Delay in secondary care: univariate analysis

Variable	Late diagnosis ≥3 days
	Odds ratio	95% CI	P-value
Age >65 years	0.84	0.33 to 2.13	0.71
Male sex	0.68	0.27 to 1.71	0.41
Comorbidity	1.28	0.49 to 3.33	0.61
Symptoms
Dyspnoea	0.31	0.12 to 0.78	0.01a
Chest pain	0.66	0.27 to 1.64	0.37
Cough	0.83	0.34 to 2.49	0.88
Haemoptysis	1.65	0.20 to 13.90	0.64
Fever	1.88	0.65 to 5.47	0.25
Calf pain	0.43	0.12 to 1.50	0.18a
Signs
Tachycardiac	1.02	0.38 to 2.76	0.97
Rales	0.84	0.24 to 3.00	0.79
Decreased breath sounds	0.50	0.06 to 2.14	0.50
Signs of DVT	1.04	0.36 to 2.97	0.95
Risk factors
Previous DVT/PE	0.22	0.03 to 2.03	0.15a
Known malignancy	0.89	0.20 to 4.01	0.87
Surgery or traumad	0.85	0.19 to 3.86	0.84
Thrombophiliab	–	–	–

^aP≤0.20, therefore data included in multivariate logistic regression analysis.

^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.