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. 2017 Mar 9;7(3):e012789. doi: 10.1136/bmjopen-2016-012789

Table 1.

Characteristics of patients with and without GP visit before diagnosis PE

No prior GP visit (n=49) Prior GP contact(s) (n=128) p Value
Age in years,* mean (±SD) 60 (17) 58 (16) 0.429
Male gender 27 (55) 60 (47) 0.327
Comorbidity
 COPD/asthma 5 (10) 27 (21) 0.067†
 Hypertension 11 (22) 37 (29) 0.387
 Atrial fibrillation 1 (2) 4 (3) 1.000†
 Congestive heart failure 0 (0) 6 (5) 0.189†
 Ischaemic heart disease 3 (6) 14 (11) 0.406†
Risk factors
 History of DVT 7 (14) 26 (20) 0.357
 Recent surgery 8 (16) 8 (6) 0.045†
 Recent immobilisation 4 (8) 6 (5) 0.467†
 Recent travelling 2 (4) 4 (3) 0.669†
 Malignancy 9 (18) 10 (8) 0.042
 Oestrogen use, women 0/22 (0) 19/68 (28) 0.005†
 Prior pulmonary infection 3 (6) 23 (18) 0.057†
 History of smoking 6 (12) 33 (26) 0.052
 Pregnancy 0/22 (0) 3/68 (4) 1.000
Days until diagnosis, median (IQR) 0 (0) 1 (8)
 Total range NA 0–126 days
Delay >7 days NA 33 (26)

Values are numbers (percentages) unless stated otherwise.

*Missing values (n=3).

†Fisher's exact test

COPD, chronic obstructive pulmonary disease; DVT, deep venous thrombosis; GP, general practitioner; NA, not applicable; PE, pulmonary embolism.