| Enrolled (n = 192) | Completed study (n = 158) | Did not complete study (n = 34) | P-value* |
---|---|---|---|---|
At enrollment | ||||
 Age, in years, mean (sd) | 61.3 (7.6) | 61.3 (7.5) | 61.1 (8.5) | p = .92 |
 Male, % (n/N) | 65.5 (126/192) | 63.9% (101/158) | 73.5% (25/34) | p = .29 |
Preferred Language | ||||
 English, % (n/N) | 87.4% (167/191) | 86.6% (136/157) | 91.2% (31/34) | p = .47 |
 Spanish, % (n/N) | 9.4% (18/191) | 10.2% (16/157) | 5.9% (2/34) | p = .44 |
 Other, % (n/N) | 3.1% (6/191) | 3.2% (5/157) | 2.9% (1/34) | p = .94 |
Race | ||||
 African-American, % (n/N) | 56.7% (109/192) | 55.7% (88/158) | 61.8% (21/34) | p = .52 |
 White, % (n/N) | 21.3% (41/192) | 20.9% (33/158) | 23.5% (8/34) | p = .73 |
 Asian, % (n/N) | 3.6% (7/192) | 4.4% (7/158) | 0.0% (0/34) | p = .21 |
 Other, % (n/N) | 16.1% (31/192) | 19.0% (30/158) | 14.7% (5/34) | p = .56 |
 Ethnicity- Latino/Hispanic, % (n/N) | 16.7% (32/192) | 17.7% (28/158) | 11.8% (4/34) | p = .40 |
 Substance use, % (n/N) | 28.6% (55/192) | 26.6% (42/158) | 38.2% (13/34) | p = .17 |
 PHQ score ≥ 15, % (n/N) | 15.7% (30/192) | 16.6% (26/158) | 11.8% (4/34) | p = .49 |
 < High school education, % (n/N) | 31.9% (61/191) | 31.9% (50/157) | 32.4% (11/34) | p = .95 |
 Limited health literacy**, % (n/N) | 37.2% (71/191) | 39.5% (62/157) | 26.5% (9/34) | p = .15 |
 FEV1 < 50% predicted | 38.8% (59/152) | 38.0% (49/129) | 43.5% (10/23) | p = .62 |
 Gold category D, % (n/N) | 46.3% (88/190) | 45.2% (71/157) | 51.5% (17/33) | p = .51 |
During study period | ||||
 >  1 hospitalization, % (n/N) | 25.0% (48/192) | 22.2% (35/158) | 38.2% (13/34) | p < 0.05 |
 >  1 hospitalization for COPD, % (n/N) | 18.2% (35/192) | 17.7% (28/158) | 20.6% (7/34) | p = .69 |
 Uses oxygen at home, % (n/N) | 18.3% (35/191) | 14.7% (23/157) | 35.3% (12/34) | p < 0.005 |