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Table 3 Characteristic distribution comparison among different COPD GOLD stage groups

From: Prediction of gold stage in patients hospitalized with COPD exacerbations using blood neutrophils and demographic parameters as risk factors

Characteristic COPD GOLD stage P value
1 (N = 13) 2 (N = 60) 3 (N = 66) 4 (N = 16)
Sex      0.032
 Male 10 (7.41%) 50 (37.04%) 60 (44.44%) 15 (11.11%)  
 Female 3 (15%) 11 (55%) 5 (25%) 1 (5%)  
Age      0.001
 < 60 2 (15.38%) 10 (76.92%) 1 (7.69%) 0 (0%)  
 60–69 4 (7.84%) 24 (47.06%) 18 (35.29%) 5 (9.80%)  
 70–79 5 (8.62%) 21 (36.21%) 28 (48.28%) 4 (6.90%)  
 ≥ 80 2 (6.06%) 6 (18.18%) 18 (54.55%) 7 (21.21%)  
Height      0.101
 < 155 2 (16.67%) 7 (58.33%) 3 (25%) 0 (0%)  
 155–164 4 (6.67%) 21 (35%) 27 (45%) 8 (13.33%)  
 165–174 7 (9.46%) 30 (40.54%) 30 (40.54%) 7 (9.46%)  
 ≥ 175 0 (0%) 3 (33.33%) 5 (55.56%) 1 (11.11%)  
Weight      0.035
 < 50 0 (0%) 5 (26.32%) 13 (68.42%) 1 (5.26%)  
 50–59 1 (3.13%) 11 (34.38%) 19 (59.38%) 1 (3.13%)  
 60–69 3 (4.84%) 28 (45.16%) 20 (32.26%) 11 (17.74%)  
 ≥ 70 9 (21.43%) 17 (40.48%) 13 (30.95%) 3 (7.14%)  
BMI      0.038
 < 18.5 0 (0%) 6 (30%) 13 (65%) 1 (5%)  
 18.5–24.5 3 (4%) 28 (37.33%) 35 (46.67%) 9 (12%)  
 24.5–30 9 (17.31%) 23 (44.23%) 14 (26.92%) 6 (11.54%)  
 > 30 1 (12.50%) 4 (50%) 3 (37.50%) 0 (0%)  
NEU%       < 0.001
 < 70 9 (15.25%) 30 (50.85%) 19 (32.20%) 1 (1.69%)  
 70–80 3 (6.98%) 18 (41.86%) 17 (39.53%) 5 (11.63%)  
 > 80 1 (1.89%) 13 (24.53%) 29 (54.72%) 10 (18.87%)  
  1. N numbers of patients