Table 2Most common secondary diagnoses associated with a principal diagnosis of COPD, 2008

Secondary diagnosesAll COPDAcute exacerbationWithout acute exacerbation
Number (%)RankNumber (%)RankNumber (%)Rank
Essential hypertension415,800 (50.6%)1257,500 (50.1%)1158,300 (51.3%)1
Current and/or past use/abuse of tobacco379,700 (46.2%)2244,400 (47.5%)2135,300 (43.9%)2
Coronary atherosclerosis and other heart disease245,600 (29.9%)3159,100 (31.0%)386,500 (28.0%)4
Disorders of lipid metabolism228,400 (27.8%)4141,100 (27.5%)487,300 (28.3%)3
Diabetes mellitus without complication207,600 (25.2%)5126,800 (24.7%)680,800 (26.2%)5
Congestive heart failure196,900 (23.9%)6130,000 (25.3%)566,900 (21.7%)6
Fluid and electrolyte disorders178,700 (21.7%)7113,500 (22.1%)765,300 (21.2%)8
Cardiac dysrhythmias170,600 (20.7%)8111,100 (21.6%)859,500 (19.3%)9
Esophageal disorders166,500 (20.2%)9100,000 (19.5%)1166,500 (21.6%)7
Respiratory failure153,300 (18.6%)10105,800 (20.6%)1047,500 (15.4%)11
Pneumonia147,000 (17.9%)11106,000 (20.6%)941,000 (13.3%)13
Mood disorders (depressive and bipolar disorders)141,500 (17.2%)1287,100 (16.9%)1254,400 (17.6%)10

Note: More than one secondary diagnosis may be recorded during a hospital stay.

Note: The distribution of other COPD discharges is statistically different from the distribution of acute exacerbation discharges at p<0.05.

Source: AHRQ, Center for Delivery, Organization, and Markets, Healthcare Cost and Utilization Project, Nationwide Inpatient Sample (NIS), 2008

From: Overview of Hospitalizations among Patients with COPD, 2008

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Healthcare Cost and Utilization Project (HCUP) Statistical Briefs [Internet].

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