Table 2.

Characteristics of patients with systemic lupus erythematosus (SLE) according to COVID-19 vaccination status (≥ 1 dose) in the LUMEN registry on December 15, 2020.

Vaccinated, n = 276Not Vaccinated, n = 66P*
Age, yrs, mean (SD)58.8 (15.4)54.1 (14.6)0.02
Sex, n (%)0.01
      Women237 (85.9)48 (72.7)
      Men39 (14.1)18 (27.3)
Race/Ethnicity, n (%)0.98
      Non-Hispanic White240 (87.0)57 (86.4)
      Hispanic12 (4.3)3 (4.5)
      Non-Hispanic Black11 (4.0)2 (3.0)
      Non-Hispanic Asian9 (3.3)3 (4.5)
      Other/mixed4 (1.5)1 (1.5)
Education level, n (%)0.05
      Graduate schoolc62 (23.7)7 (11.3)
      Technical school/college/universityc132 (50.4)40 (64.5)
      High schoolc63 (24.0)12 (19.4)
      < High schoolc5 (1.9)3 (4.8)
      Missing, n144
Area Deprivation Index, mean (SD)93.2 (12.8)94.0 (11.4)0.75
Primary RUCA code, n (%)0.67
      Metropolitan area core115 (41.7)20 (30.3)
      Metropolitan area high commuting59 (21.4)20 (30.3)
      Micropolitan area core47 (17.0)14 (21.2)
      Micropolitan area high commuting12 (4.3)3 (4.5)
      Micropolitan area low commuting1 (0.4)0 (0.0)
      Small town core20 (7.2)5 (7.6)
      Small town high commuting3 (1.1)1 (1.5)
      Rural areas19 (6.9)3 (4.5)
Charlson Comorbidity Indexa, mean (SD)2.4 (2.7)2.5 (2.5)0.43
BMIb, kg/m2, mean (SD)29.4 (7.9)30.0 (7.3)0.40
      BMI > 30c, n (%)104 (39.5)28 (42.4)0.67
      BMI > 40c, n (%)27 (10.3)8 (12.1)0.66
      Missing, n130
Smokingb n (%)0.73
      Currentc46 (19.0)11 (17.7)
      Formerc92 (38.0)27 (43.5)
      Neverc104 (43.0)24 (38.7)
      Missing, n344
History of COVID-19 diagnosis or positive test, n (%)12 (4.3)5 (7.6)0.28
Previous vaccinationd, n (%)
      Influenza (at least once)229 (83.0)42 (63.6)< 0.001
      Pneumococcal vaccine147 (53.3)20 (30.3)< 0.001
      Recombinant zoster vaccine (at least once)52 (18.8)8 (12.1)0.20
SLE duration, yrs, median (IQR)10.7 (4.7-20.3)7.3 (2.6-13.4)0.008
2019 EULAR/ACR criteriab
Constitutional, n (%)
      Fever17 (6.2)5 (7.6)0.67
Hematologic domain, n (%)
      Leukopenia123 (44.6)26 (39.4)0.45
      Thrombocytopenia44 (15.9)10 (15.2)0.87
      Autoimmune hemolysis12 (4.3)2 (3.0)0.63
Neuropsychiatric domain, n (%)
      Delirium2 (0.7)0 (0.0)0.49
      Psychosis1 (0.4)0 (0.0)0.62
      Seizures5 (1.8)1 (1.5)0.87
Mucocutaneous domain, n (%)
      Nonscarring alopecia13 (4.7)2 (3.0)0.55
      Oral ulcers25 (9.1)5 (7.6)0.70
      Subacute cutaneous or discoid lupus45 (16.3)10 (15.1)0.82
      Acute cutaneous lupus68 (24.6)20 (30.3)0.34
Serosal domain, n (%)
      Pleural or pericardial effusion40 (14.5)13 (19.7)0.29
      Acute pericarditis26 (9.4)5 (7.6)0.64
Musculoskeletal domain, n (%)
      Arthritis186 (67.4)44 (66.7)0.91
Renal domain, n (%)
      Proteinuria > 0.5g/24h64 (23.2)17 (25.8)0.66
      Class II or V LN22 (8.0)11 (16.7)0.03
      Class III or IV LN43 (15.6)13 (19.7)0.42
Immunology domain, n (%)
      aPL65 (23.6)19 (28.8)0.38
      Low C3 or C4105 (38.0)22 (33.3)0.48
      Low C3 and C489 (32.2)18 (27.3)0.43
      Anti-dsDNA203 (73.6)49 (74.2)0.91
      Anti-Sm57 (20.7)16 (24.2)0.52
Immunosuppressant and immunomodulator drugse, n (%)239 (86.6)57 (86.4)0.96
      Hydroxychloroquine208 (75.4)47 (71.2)0.49
      Mycophenolate mofetil76 (27.5)17 (25.8)0.77
      Methotrexate47 (17.0)11 (16.7)0.94
      Azathioprine35 (12.7)8 (12.1)0.90
      Tacrolimus16 (5.8)4 (6.1)0.94
      Leflunomide10 (3.6)3 (4.5)0.73
      Chloroquine6 (2.2)3 (4.5)0.28
      Rituximab6 (2.2)1 (1.5)0.73
      Belimumab5 (1.8)2 (3.0)0.53
      Cyclophosphamide1 (0.4)1 (1.5)0.27
  • *Wilcoxon rank-sum or chi-square test.

  • aFrom December 15, 2015, to December 14, 2020, excluding rheumatologic category.

  • bUpon entry to LUMEN cohort, January 1, 2015.

  • cThe denominator excludes missing.

  • dVaccine uptake from January 1, 2015, to February 29, 2020, for influenza and pneumococcal vaccine, and from January 1, 2018, to February 29, 2020, for zoster vaccine.

  • eMedications which were used during a 5-year lookback prior to December 15, 2020. ACR: American College of Rheumatology; aPL: antiphospholipid antibody; COVID-19: coronavirus disease 2019; EULAR: European Alliance of Associations for Rheumatology; LN: lupus nephritis; LUMEN: Lupus Midwest Network; RUCA: rural-urban commuting area.