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Table 1 Patient characteristics

From: Peripheral blood natural killer cell percentages in granulomatosis with polyangiitis correlate with disease inactivity and stage

Characteristics Data
Patients with GPA, n 28
Male/female, n 16/12
Age, yr, mean ± SD (range) 61.8 ± 16.6 (30–81)
Patients with active GPA (BVAS >0), n (%) 11/28 (39 %)
BVAS (of active GPA), mean ± SD 6.8 ± 7.5
Patients with inactive GPA (BVAS = 0), n (%) 17/28 (61 %)
Duration of remission, yr (of inactive GPA), median ± SD 4.08 ± 2.3
Organ system involvement, n (%)  
 ENT 23/28 (82 %)
 Lung 15/28 (54 %)
 Kidney 18/28 (64 %)
 Skin 8/28 (29 %)
 Joints 12/28 (43 %)
 NS 8/28 (29 %)
Localized GPA (upper airways and ENT organs only), n (%) 3/28 (11 %)
Generalized GPA, n (%) 25/28 (89 %)
Number of involved organ systems, mean ± SD 4.3 ± 1.2
Number of relapses, mean ± SD (range) 1.1 ± 1.4 (0–5)
Length of time since disease onset, yr, mean ± SD 9.4 ± 7.9
c-ANCA, n (%)  
 Positive 22/28 (79 %)
 Negative 3/28 (11 %)
 Not determinable 3/28 (11 %)
  1. c-ANCA cytoplasmic antineutrophil cytoplasmic antibodies, GPA granulomatosis with polyangiitis, ENT ear, nose, and throat, NS nervous system, PR3 anti-proteinase 3 antibody, SD standard deviation