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Table 1 Scores for the components of the ADO indices of patients with COPD ( n= 7597)

From: Impact of risk factors, activities and psychological disorders on the health of patients with chronic obstructive pulmonary disease in China: a cross-sectional study

Variables value (label) Number Score
FEV1(% predicted)
0 (≥65%) 3213 0
1 (36 ~ 64%) 3339 3339
2 (≤35%) 1045 2090
Total 7597 5429
Dyspnea (MRC scale)
0 (0) 698 0
0 (1) 2417 0
1 (2) 1904 1904
2 (3) 1479 2958
3 (4) 1099 3297
Total 7597 8159
Age (years)
0 (40 ~ 49) 1224 0
1 (50 ~ 59) 1565 1565
2 (60 ~ 69) 2125 4250
3 (70 ~ 79) 2000 6000
4 (80 ~ 89) 683 2732
Total 7597 14547
ADO index 7597 28135
  1. FEV 1 Forced expiratory volume (1 s). MRC Medical research council.