Table 1

Characteristics of the patients with RA with and without ischaemic heart disease (IHD)

CharacteristicRA with IHD (n = 34)RA without IHD (n = 28)p Value
Continuous data are expressed as means (SD). Frequencies are given as actual number with (%). Continuous data were analysed using Student’s t test or the Mann-Whitney U test depending on normality distribution, and frequencies were compared by χ2 test.
Age (years)60.9 (7.7)53.6 (11.2)0.001
Male sex19 (56%)8 (29%)0.03
Rheumatoid factor29 (85%)25 (89%)0.7
Current smoking9 (26%)9 (32%)0.6
Diabetes4 (12%)00.1
Family history20 (59%)12 (43%)0.08
Past medical history of IHD12 (35%)4 (14%)0.06
Body mass index28.4 (4.6)25.5 (3.4)0.01
Hypertension
    Past diagnosis13 (38%)9 (32%)0.7
    Systolic BP156.5 (24.9)140.6 (22.6)0.03
    Diastolic BP86.9 (11.9)81.3 (7.3)0.04
ECG
    LVH7 (21%)5 (18%)0.8
    Bundle branch block6 (18%)2 (7%)0.2
    QRS abnormality13 (38%)9 (32%)0.6
Lipids
    Total cholesterol (mmol/l)5.8 (0.9)5.6 (1.0)0.6
    HDL (mmol/l)1.41 (0.42)1.47 (0.26)0.2
    Triglycerides (mmol/l)1.72 (0.69)1.41 (0.59)0.07
Absolute 10 year risk of a cardiac event0.22 (0.12)0.11 (0.10)0.0003