Table 2.

Univariate comparisons of patients with and without coronary events used in lipid models.

VariableCAD, n = 21 N (%) or Mean (SD)No CAD, n = 363 N (%) or Mean (SD)p
Female19 (90.5%)326 (89.8%)1.00
  Menopauseß at study starta9 (47.4%)100 (30.7%)0.13
Race
  White19 (90.5%)227 (63.8)0.01
  Black046 (12.9%)
  Asian043 (12.1%)
  Other2 (9.5%)40 (11.2%)
Age, yrs, mean (SD)
  At diagnosis38.7 (14.5)28.8 (12.4)0.0005
  At first visit42.8 (13.3)33.1 (12.1)0.0004
  At study starta52.1 (12.7)40.9 (13.5)0.0003
Disease duration, yrs, mean (SD)
  At first visit4.1 (6.7)4.3 (6.1)0.92
  At study starta13.4 (9.4)12.2 (9.7)0.56
SLEDAI-2K, throughout study* median (min, max)10 (0, 51)4 (0, 51)< 0.0001
Corticosteorids
  At study starta16 (76.2%)230 (63.4%)0.23
  Ever during followup17 (81.0%)257 (70.8%)0.32
Antimalarials£
  At study starta13 (61.9%)225 (62.0%)0.99
  Ever during followup14 (66.7%)270 (74.4%)0.43
Immunosuppressives
  At study starta12 (57.1%)155 (42.7%)0.19
  Ever during followup14 (66.7%)205 (56.5%)0.36
Hypertension¥
  At study starta17 (81.0%)150 (41.3%)0.0004
  Ever during followup19 (90.5%)212 (58.4%)0.004
Hypercholesterolemia¢
  At study starta18 (85.7%)142 (39.1%)< 0.0001
  Ever during followup21 (100%)226 (62.3%)0.0004
Diabetes mellitus§
  At study starta2 (9.5%)29 (8.0%)0.68
  Ever during followup2 (9.5%)33 (9.1%)1.00
Smoker$
  At study starta2 (9.5%)44 (12.2%)1.00
  Ever during followup2 (9.5%)55 (15.2%)0.75
Antihypertensivesϕ
  Ever up to study starta19 (90.5%)165 (45.6%)< 0.0001
  Ever during followup18/19 (94.7%)192/212 (90.6%)1.00
Lipid-lowering medicationsΨ
  Ever up to study starta7 (43.8%)51 (15.4%)0.009
  Ever during followup16/21 (76.2%)96/226 (42.5%)0.003
LDL-C at study starta3.51 (1.61)2.75 (1.08)0.04
Mean of all LDL-C3.29 (1.24)2.60 (0.85)0.02
Mean LDL-C > 2.0 mmol/l18 (85.7%)317 (87.3%)0.83
Mean LDL-C > 2.5 mmol/l14 (66.7%)169 (46.6%)0.07
Mean LDL-C > 3.2 mmol/l12 (57.1%)119 (32.8%)0.02
TAM of all LDL-C3.29 (1.21)2.60 (0.85)0.02
HDL-C at study starta1.73 (0.64)1.57 (0.49)0.16
Mean of all HDL-C1.68 (0.51)1.62 (0.47)0.56
Mean HDL-C < 1 mmol/l2 (9.5%)39 (10.7%)0.86
Mean HDL-C < 2 mmol/l14 (66.7%)332 (91.5%)< 0.0001
TAM of all HDL-C1.67 (0.49)1.62 (0.47)0.65
TC:HDL-C at study starta4.22 (2.41)3.36 (1.13)0.12
Mean of all TC:HDL-C3.87 (1.69)3.19 (0.95)0.09
Mean TC:HDL-C > 49 (42.9%)104 (28.7%)0.17
Mean TC:HDL-C > 4.57 (33.3%)57 (15.7%)0.035
Mean TC:HDL-C > 55 (23.8%)40 (11.0%)0.076
TAM of all TC:HDL-C3.87 (1.67)3.18 (0.97)0.08
TG at study starta2.10 (1.44)1.41 (0.74)0.04
Mean of all TG1.97 (1.09)1.33 (0.66)0.02
Mean TG > 1.7 mmol/l10 (47.6%)138 (38.0%)0.38
Mean TG > 2.0 mmol/l8 (38.1%)98 (27.0%)0.27
TAM of all TG1.95 (1.07)1.33 (0.67)0.02
  • a Study start was the first clinic visit wherein LDL-C, HDL-C, and TG measurements were taken.

  • * All serial measurements in all patients.

  • ß Minimum of 12 months amenorrhea, irrespective of cause.

  • Range 0 to 105, with higher scores indicating more active disease.

  • £ Chloroquine and hydroxychloroquine.

  • Methotrexate, azathioprine, mycophenolate mofetil, cyclosporine, and cyclophosphamide.

  • ¥ Diastolic blood pressure (BP) > 90 or systolic BP > 140 mm Hg or treatment with antihypertensive medication.

  • ¢ Cholesterol ≥ 5.2 mmol/l or lipid-lowering therapy.

  • § Fasting plasma glucose > 7.0 mmol/l or diabetes therapy.

  • $ An average of ≥ 1 cigarette/s per day over the past month.

  • ϕ All classes of antihypertensives including diuretics, ß-blockers, calcium channel blockers, angiotensin-converting enzyme inhibitors, and angiotensin-type II receptor blockers.

  • Ψ HMG Co-A reductase inhibitors (statins).

  • Nonparametric Mann-Whitney (Wilcoxon rank sum) test used. CAD: coronary artery disease; SLEDAI-2K: Systemic Lupus Erythematosus Disease Activity Index 2000; LDL-C: low-density lipoprotein cholesterol; HDL-C: high-density lipoprotein cholesterol; TC:HDL-C: total cholesterol high-density lipoprotein cholesterol ratio; TG: triglyceride; TAM: time-adjusted mean.