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. Author manuscript; available in PMC: 2017 Feb 1.
Published in final edited form as: Semin Arthritis Rheum. 2015 Aug 3;45(4):483–489. doi: 10.1016/j.semarthrit.2015.07.009

Table 1.

Baseline Characteristics According to the Presence of Granulomatosis with Polyangiitis

Variables Granulomatosis with
Polyangiitis
(n=465)
Comparison Cohort
(n=4613)
P
Age, years 60.3 ± 14.6 60.3 ± 14.6 0.95
Sex
Male 245 (52.7%) 2419 (52.4%) 0.92
Female 220 (47.3%) 2194 (47.6%)
BMI (kg/m2) 0.76
Mean ± SD 26.8 ± 5.1 26.9 ± 5.2
<18.5 13 (2.8%) 59 (1.3%)
18.5–24.9 132 (28.4%) 1390 (30.1%)
25.0–29.9 145 (31.2%) 1435 (31.1%)
≥30.0 86 (18.5%) 828 (17.9%)
Unknown 89 (19.1%) 901 (19.5%)
Socio-Economic Deprivation
Index Score
2.6 ± 1.4 2.6 ± 1.4 0.78
Smoking 0.01
None 229 (49.2%) 2310 (50.1%)
Past 128 (27.5%) 993 (21.5%)
Current 70 (15.1%) 830 (18.0%)
Unknown 38 (8.2%) 480 (10.4%)
Alcohol 0.58
None 72 (15.5%) 663 (14.4%)
Past 10 (2.2%) 67 (1.5%)
Current 298 (64.1%) 2993 (64.9%)
Unknown 85 (18.3%) 890 (19.3%)
Charlson Comorbidity Index 0.7 ± 1.2 0.3 ± 0.9 <0.001
GP Visits 6.1 ± 4.3 3.0 ± 3.5 <0.001
Hypertension 144 (31.0%) 1303 (28.2%) 0.22
Hyperlipidemia 95 (20.4%) 898 (19.5%) 0.62
Stroke 30 (6.5%) 196 (4.2%) 0.03
Ischemic Heart Disease 45 (9.7%) 403 (8.7%) 0.50
Chronic Kidney Disease 63 (13.5%) 185 (4.0%) <0.001
Diabetes 24 (5.2%) 326 (7.1%) 0.12
Angiotensin Converting
Enzyme Inhibitor
69 (14.8%) 630 (13.7%) 0.48
Aspirin 74 (15.9%) 627 (13.6%) 0.17
Angiotensin II Receptor
Blockers
21 (4.5%) 218 (4.7%) 0.84
Beta-Blockers 69 (14.8%) 599 (13.0%) 0.26
Calcium Channel Blockers 82 (17.6%) 545 (11.8%) <0.001
Diuretics 111 (23.9%) 714 (15.5%) <0.001
NSAIDs 160 (34.4%) 846 (18.3%) <0.001
Glucocorticoids 182 (39.1%) 203 (4.4%) <0.001
Albumin, mmol/L 37.0 ± 6.3 42.3 ± 3.7 <.0001
Cholesterol, mmol/L 5.0 ± 1.3 5.2 ± 1.1 0.03

Data are represented as mean ± standard deviation (SD) or number (percentage); Socio-Economic Deprivation Index score was measured by the Townsend Deprivation Index, which was grouped into quintiles from 1 (least deprived) to 5 (most deprived); Hyperlipidemia is defined as having either a diagnosis of hyperlipidemia or a prescription for antihyperlipidemics; Glucocorticoids are oral or injectable steroids; Diuretics are loop or thiazide diuretics.