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. 2007 Sep;2(3):313–321. doi: 10.2147/copd.s2147

Table 1.

Demographical data, lung function, SGRQ scores, tHCY and sCRP among controls and COPD patients. Data is shown either as mean (SD) or median (25th centile, 75th centile)

Characteristics Controls (N = 25) COPD (N = 29) p-value
Age/yrs mean (SD) 64.8 (6.8) 69.1 (9.8) 0.137
Height/cms 164.3 (9.3) 164.8 (9.2) 0.849
Gender: Male N (%) 16 (64) 23 (79) 0.218
Ethnicity N (%)* 0.061
  East Indians (Indo-Trinidadian) 9 (36) 16 (55)
  African (Afro-Trinidadian) 8 (32) 10 (35)
  Other 8 (32) 3 (10)
BMI kg/m2 (median (IQR) 27.4 (25.9, 29.9) 24.0 (20.5, 27.0) 0.001
Lung Function (mean (SD))
FEV1/L 2.25 (0.77) 1.43 (0.60) <0.001
FVC/L 2.91 (1.02) 2.72 (0.82) 0.18
FEV1/FVC % 78.1 (8.3) 53.1 (14.0) <0.001
FEV1 % predicted 76.1 (17.2) 49.1 (16.3) <0.001
SGRQ Scores (median (IQR))
  Impact 0.0 (0.0, 0.0) 35.7 (10.0, 50.8) <0.001
  Activity 6.2 (0.0,12.2) 47.7 (26.0, 66.3) <0.001
  Symptoms 0.0 (0.0,8.1) 49.3 (19.1, 64.0) <0.001
  Total 2.8 (0.0, 9.3) 44.2 (18.4, 55.0) <0.001
tHCY/micromol/L 8.22 (6.63, 9.55) 10.96 (7.56,13.60) 0.006
sCRP/mg/L 0.890 (0.47, 2.55) 2.050 (0.86, 6.19) 0.023

Abbreviations: SD, standard deviation; FEV1, forced expiratory volume in 1 second; FVC, forced vital capacity; SGRQ, St. George’s Respiratory Questionnaire; tHCY, total plasma homocysteine; sCRP, serum C-reactive protein; BMI, Body Mass Index.

Note: *Ethnicity was determined from the patient’s own perception.