Table 2.
CMR findings in RA and control subjects
| RA (N=59) | Control (N=56) | P | Adjusted P | |
|---|---|---|---|---|
| Heart rate, bpm | 72 [66, 79] | 68 [59, 73] | 0.01 | 0.02 |
| LV mass indexed to BSA, g/m2 | 43.8 [40.0, 49.5] | 42.2 [36.4, 48.5] | 0.19 | 0.21 |
| LVEF, % | 67.9 [62.4, 74.4] | 66.7 [60.1, 70.3] | 0.09 | 0.07 |
| LVEDV indexed to BSA, ml/m2 | 59.3 [46.9, 66.9] | 61.1 [55.0, 66.3] | 0.23 | 0.13 |
| LVESV indexed to BSA, ml/m2 | 18.0 [11.7, 24.5] | 20.9 [16.0, 26.3] | 0.06 | 0.05 |
| LV ci, l/min/m2 | 2.79 [2.43, 3.15] | 2.62 [2.19, 3.00] | 0.14 | 0.13 |
| LA size, mm | 29 [24, 32] | 29 [26, 32] | 0.40 | 0.19 |
| RVEF, % | 62.0 [56.9, 67.2] | 59.5 [54.3, 63.5] | 0.03 | 0.001 |
| RVEDV indexed to BSA, ml/m2 | 58.3 [50.7, 69.5] | 63.3 [59.1, 72.3] | 0.004 | 0.004 |
| RVESV indexed to BSA, ml/m2 | 20.4 [15.7, 27.9] | 26.6 [20.8, 33.6] | 0.002 | 0.001 |
| RA size, mm | 30 [25, 34] | 34 [30, 38] | 0.001 | 0.001 |
| Interventricular septum, mm | 7 [6, 8] | 7 [6, 8] | 0.08 | 0.15 |
| Presence of LGE, # (%) | 2 (3) | 1 (2) | - | - |
| Native myocardial T1, msec | 973 [928, 995] | 973 [945, 1001] | 0.45 | 0.60 |
| Post-contrast T1, msec | 453 [427, 476] | 457 [424, 486] | 0.37 | 0.13 |
| ECV, % | 26.6 [24.7, 28.5] | 27.5 [25.4, 30.4] | 0.03 | 0.04 |
Adjusted for age, race and sex. BPM= beats per minute, LV= left ventricular, BSA= body surface area, EF= ejection fraction, EDV= end diastolic volume, ESV= end systolic volume, ci= cardiac index, LA= left atrium, RV= right ventricle, RA=right atrium, LGE= late gadolinium enhancement, ECV=extracellular volume.