Broca-Katsura index (%)

0 to <20

20 to <40

40 to <60

Group

D

E

F

Number

85

40

21

Age (yrs)

74.3 ± 5.2

73.6 ± 6.1

74.9 ± 6.4

Height (cm)

154.7 ± 8.3

150.8 ± 8.2

149.1 ± 9.1*

Weight (kg)

51.3 ± 7.7

60.1 ± 8.9*

66.2 ± 12.2*^,†

%FVC (%)

102.8 ± 19.0

102.0 ± 13.7

99.2 ± 13.2

FEV_1.0% (%)

78.6 ± 5.1

81.3 ± 8.5*

81.1 ± 10.6

a-ETCO₂ (mmHg)

4.3 ± 3.5

4.7 ± 3.0

4.8 ± 3.3