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. 2019 Jul 10;3(3):bjgpopen19X101652. doi: 10.3399/bjgpopen19X101652

Table 1. Patient and population characteristics of study population (n = 303).

Variable n (%) Remarks
Sex Male 148 (48.8)
Female 155 (51.2)
Age, years ≤30 15 (5.0)  Mean age, years (range): 58.3 (17–100)
31–40 25 (8.3)
41–50 47 (15.5)
51–60 78 (25.7)
61–70 74 (24.4)
71–80 43 (14.2)
>80 21 (6.9)
Type of contact(missing data n = 1) Consultation, daytime, own GP 139 (46.0)   150 patients (49.7%) seen by their own GP during office hours, 152 patients (50.3%) seen by GP on call at OOH service
Home visit, daytime, own GP 11 (3.6)
Consultation, OOH service 146 (48.3)
Home visit, OOH service 6 (2.0)
History No DM2 or prior CVD 179 (59.1)
DM2 22 (7.3)
Prior CVD 90 (29.7)
DM2 and prior CVD 12 (4.0)
Duration of complaints at presentation, hours(missing data n = 6) 0–1 32 (10.8)   –
2–3 83 (27.9)
4–6 62 (20.9)
7–12 52 (17.5)
13–24 68 (22.9)
eGFR, ml/min(missing data n = 49)  ≤30 3 (1.2)
 31–60 42 (16.5)
 >60 09 (82.3)
ECG performed(missing data n = 1)  No 50 (16.6)
 Yes, no abnormalities 152 (50.3)
 Yes, with abnormalities 100 (33.1)
Referral policy  No referral 167 (55.1)   Overall referral percentage: 44.9% Overall direct referral percentage: 37.0% Overall referral percentage at later time: 7.9%
 Direct referral on presentation to cardiologist 107 (35.3)
 Direct referral on presentation, other 5 (1.7)
 Referral at later time during follow-up, cardiologist 20 (6.6)
 Referral at later time during follow-up, other 4 (1.3)
Troponin available  Troponin available (all patients) 267 (88.1)
Troponin available (non-referred patients) 171 (87.2)
 Troponin available (referred patients) 96 (89.7)

CVD = cardiovascular disease. DM2 = type 2 diabetes mellitus. ECG = electrocardiogram. eGFR = estimated glomerular filtration rate. OOH service = out-of-hours service.