Table 1 Characteristics of enrolled NETT patients used in this report* (n = 1828).

Age at evaluation (years; Mean ± SD)

66.7 ± 6.3

Gender

1134 (62%) Male

694 (38%) Female

Race/ethnic group

1727 (94%) Non-Hispanic white

73 (4%) Non-Hispanic black

28 (2%) Other

FEV₁

   % of predicted (Mean ± SD)

27.1 ± 7.5

   L (Mean ± SD)

0.78 ± 0.25

D_LCO

   % of predicted (Mean ± SD)

28.2 ± 10.1

   ml/min/mmHg STPD (Mean ± SD)

8.0 ± 3.2

Beck Depression Inventory (Mean ± SD)

9.5 ± 6.0

Spielberger Anxiety Inventory - State (Mean ± SD)

34.9 ± 10.9

6-Minute Walk Test (meters; Mean ± SD)

344.2 ± 105.8

Maximum Exercise Capacity (watts; Mean ± SD)

35.6 ± 21.9

St. George's Respiratory Questionnaire - total score (Mean ± SD)

56.4 ± 13.1

UCSD Shortness of Breath Questionnaire (Mean ± SD)

64.9 ± 19.4