Table 1

Baseline characteristics among 42 257 patients admitted to their first cardiac CT procedure due to chest pain from 1 January 2008 to 31 December 2016 in Denmark

Non-RA patientsPatients with RA
N%N%
No of patients41 89999.23580.8
Age, median (IQR)*57.24 (49.1–65.1)62.7 (55.7–70.1)
Gender
Male18 43844.08423.5
Female23 46156.027476.5
Comorbidity according to Charlson
No comorbidity29 98971.620457.0
Moderate comorbidity667515.97520.9
Severe comorbidity523512.57922.1
Diabetes, N (%)33087.9318.7
BMI (kg/m2)
<18.54551.161.7
18.5≤2513 56832.413236.9
25≤3014 46334.512234.1
≤30727817.46117.0
Missing613614.63710.3
Hypertension, N (%)19 20345.820055.9
Treatment with lipid-lowing drugs N (%)14 11533.714339.9
Smoking
Current smoker876620.95715.9
Former smoker13 36231.914741.0
Never smoker16 41039.212033.5
 Missing23618,2349.5
Level of stenosis
Non-obstructive CAD12 65730.212234.1
1-vessel obstructive CAD40149.63710.3
2-vessel obstructive CAD9592.3133.6
3-vessel/LM obstructive CAD2460.651.4
Missing630.210.3
Calcium score
019 69047.013236.9
1–99978923.410128.2
100–399433110.34111.5
>39927066.53710.3
Missing538412.84713.1
  • *Age at time for first cardiac CT due to chest pain.

  • BMI, body mass index; CAD, coronary artery disease; LM, Left Main; RA, rheumatoid arthritis.