Table 2: Cohort study: Baseline characteristics.

 

 

Total *

COPD with Depression/Anxiety

COPD without Depression/ Anxiety

Characteristic

N

%

N

%

N

%

Number of Patients

31,279

100.00%

12,701

100.00%

18,578

100.00%

Age [Mean (SD)]

77.2

(7.45)

77.6

(7.72)

77.0

(7.24)

Male

11,357

36.31%

3,515

27.67%

7,842

42.21%

Region of U.S.*

Boston

2,119

6.77%

903

7.11%

1,216

6.55%

New York

2,572

8.22%

934

7.35%

1,638

8.82%

Philadelphia

2,887

9.23%

1,069

8.42%

1,818

9.79%

Atlanta

8,587

27.45%

3,873

30.49%

4,714

25.37%

Chicago

4,634

14.82%

1,776

13.98%

2,858

15.38%

Dallas

3,772

12.06%

1,545

12.16%

2,227

11.99%

Kansas City

1,915

6.12%

787

6.20%

1,128

6.07%

Denver

826

2.64%

315

2.48%

511

2.75%

San Francisco

3,107

9.93%

1,112

8.76%

1,995

10.74%

Seattle

860

2.75%

387

3.05%

473

2.55%

Race/Ethnicity

White

26,510

84.75%

11,103

87.42%

15,407

82.93%

African-Americans

2,487

7.95%

753

5.93%

1,734

9.33%

Hispanic

1,051

3.36%

538

4.24%

513

2.76%

Other Races:

1,231

3.94%

307

2.42%

924

4.97%

Inpatient Charlson Index

Score = 0

24,127

77.13%

8,960

70.55%

15,167

81.64%

Score = 1

3,234

10.34%

1,707

13.44%

1,527

8.22%

Score ≥ 2

3,918

12.53%

2,034

16.01%

1,884

10.14%

Outpatient Charlson Index

Score = 0

13,480

43.10%

4,733

37.26%

8,747

47.08%

Score = 1

7,643

24.43%

3,316

26.11%

4,327

23.29%

Score = 2

4,832

15.45%

2,158

16.99%

2,674

14.39%

Score ≥ 3

5,324

17.02%

2,494

19.64%

2,830

15.23%

Drugs Pre-Index (% with any fills)

Antibiotics

15,510

49.59%

6,564

51.68%

8,946

48.15%

ICS/LABA combination

5,572

17.81%

2,055

16.18%

3,517

18.93%

Inhaled cortico-steroid (ICS)

2,048

6.55%

821

6.46%

1,227

6.60%

Injected Steroids

62

0.20%

43

0.34%

19

0.10%

Ipratropium

4,266

13.64%

1,870

14.72%

2,396

12.90%

Long-acting beta-agonist (LABA)

694

2.22%

252

1.98%

442

2.38%

Leukotriene modifiers

2,730

8.73%

1,143

9.00%

1,587

8.54%

Methylxanthines

1,187

3.79%

484

3.81%

703

3.78%

Oral corticosteroids (OCS)

6,164

19.71%

2,549

20.07%

3,615

19.46%

Short-acting beta-agonist (SABA)

6,212

19.86%

2,496

19.65%

3,716

20.00%

Tiotropium

3,767

12.04%

1,280

10.08%

2,487

13.39%

any of above drugs †

22,367

71.51%

9,045

71.21%

13,322

71.71%

 

*enrollees in non-U.S. region were not included

†use of omalizumab and mast cell stabilizers are also included but not reported because of cell size report restrictions