Table 3 COPD subgroups according to the GOLD “ABCD” classification
GOLD classifications | Total | subgroup 1 (n = 158) | Subgroup 2 (n = 48) | subgroup 3 (n = 66) | p-value† |
|---|---|---|---|---|---|
according to mMRC | <.0001 | ||||
A | 160(58.8) | 135(85.4) | 5(10.4) | 20(30.3) | |
B | 91(33.5) | 17(10.8) | 31(64.6) | 43(65.2) | |
C | 7(2.6) | 4(2.5) | 3(6.3) | 0(0.0) | |
D | 14(1.1) | 2(1.3) | 9(18.7) | 3(4.5) | |
according to CAT total score | <.0001 | ||||
A | 70(25.7) | 63(39.9) | 1(0.2) | 6(9.1) | |
B | 181(66.5) | 89(56.3) | 35(72.9) | 57(86.4) | |
C | 1(0.4) | 0(0.0) | 1(2.1) | 0(0.0) | |
D | 20(7.4) | 6(3.8) | 11(22.9) | 3(4.5) |