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Table 3 COPD and depression/anxiety

From: Disproportionately raised risk of adverse outcomes in patients with COPD and comorbid type 2 diabetes or depression: Swedish register-based cohort study

Outcome

No of outcome events/individuals

Unadjusted

Adjusted

 

N

HR (95% CI)

HR (95% CI)

Additive interaction (95% CI)

Cardiovascular disease

    

Atrial fibrillation

453 280/5 464 764

   

No COPD or depression/anxiety

Reference

Reference

<-0.01 (-0.04, 0.04)

Depression/anxiety

0.97 (0.96, 0.97)

1.04 (1.03, 1.05)

COPD

1.68 (1.65, 1.70)

1.63 (1.61, 1.65)

COPD and depression/anxiety

1.57 (1.55, 1.60)

1.67 (1.64, 1.70)

Cerebrovascular disease

356 848/5 481 249

   

No COPD or depression/anxiety

Reference

Reference

0.09 (0.05, 0.13)

Depression/anxiety

1.28 (1.27, 1.29)

1.37 (1.36, 1.38)

COPD

1.39 (1.37, 1.41)

1.35 (1.33, 1.37)

COPD and depression/anxiety

1.73 (1.70, 1.76)

1.81 (1.77, 1.84)

Chronic heart failure

383 601/5 515 858

   

No COPD or depression/anxiety

Reference

Reference

0.40 (0.34, 0.45)

Depression/anxiety

1.21 (1.20, 1.22)

1.31 (1.30, 1.32)

COPD

2.87 (2.83, 2.90)

2.74 (2.71, 2.78)

COPD and depression/anxiety

3.29 (3.25, 3.34)

3.45 (3.40, 3.50)

Ischemic heart disease

429 938/5 355 693

   

No COPD or depression/anxiety

Reference

Reference

0.16 (0.12, 0.20)

Depression/anxiety

1.08 (1.07, 1.08)

1.20 (1.19, 1.21)

COPD

1.79 (1.77, 1.82)

1.73 (1.71, 1.76)

COPD and depression/anxiety

1.91 (1.88, 1.95)

2.09 (2.06, 2.13)

Peripheral arterial disease

176 588/5 569 229

   

No COPD or depression/anxiety

Reference

Reference

0.16 (0.08, 0.24)

Depression/anxiety

1.21 (1.19, 1.22)

1.33 (1.31, 1.34)

COPD

2.60 (2.56, 2.65)

2.49 (2.44, 2.53)

COPD and depression/anxiety

2.78 (2.72, 2.85)

2.98 (2.91, 3.05)

Mortality

    

All-cause mortality

1 078 751/5 624 306

   

No COPD or depression/anxiety

Reference

Reference

0.59 (0.55, 0.63)

Depression/anxiety

2.22 (2.21, 2.23)

2.39 (2.38, 2.40)

COPD

2.86 (2.83, 2.88)

2.74 (2.72, 2.76)

COPD and depression/anxiety

4.53 (4.49, 4.56)

4.72 (4.68, 4.75)

Cardiovascular death

655 441/5 624 306

   

No COPD or depression/anxiety

Reference

Reference

0.73 (0.68, 0.78)

Depression/anxiety

2.11 (2.09, 2.12)

2.28 (2.27, 2.29)

COPD

2.90 (2.87, 2.93)

2.77 (2.74, 2.79)

COPD and depression/anxiety

4.56 (4.52, 4.60)

4.77 (4.73, 4.82)

Respiratory death

252 179/5 624 306

   

No COPD or depression/anxiety

Reference

Reference

5.68 (5.50, 5.85)

Depression/anxiety

2.43 (2.41, 2.46)

2.66 (2.63, 2.68)

COPD

9.24 (9.14, 9.35)

8.78 (8.68, 8.88)

COPD and depression/anxiety

15.34 (15.17, 15.52)

16.11 (15.93, 16.30)

  1. Cox regression with COPD and depression/anxiety diagnoses being modelled as time-varying covariates. The adjusted HRs were obtained by controlling for sex, highest attained level of education, county of residence, and entrance year in the study. The additive interactions were calculated as the relative excess risk due to interaction (RERI)
  2. Abbreviations: HR hazard ratio; CI confidence interval