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Table 3 Prevalence of Individual FCI Comorbidities by Data Collection Method (n = 421)

From: The functional comorbidity index had high inter-rater reliability in patients with acute lung injury

FCI Comorbidity, n (%)

Prospective: Admission Records

Retrospective: Discharge Summaries

p-value*

Arthritis (rheumatoid and osteoarthritis)

4 (1)

23 (5)

<0.01

Osteoporosis

4 (1)

10 (2)

0.03

Asthma

16 (4)

28 (7)

<0.01

COPD, emphysema, or ARDS

21 (5)

56 (13)

<0.01

Angina

1 (1)

1 (1)

1.00

Congestive heart failure (or heart disease)

80 (19)

84 (20)

0.07

Myocardial infarction

24 (6)

13 (3)

0.03

Neurological disease (e.g., MS or Parkinson’s)

7 (2)

55 (13)

<0.01

Stroke or TIA

34 (8)

25 (6)

0.32

Peripheral vascular disease

13 (3)

25 (6)

<0.01

Diabetes type I or II

105 (25)

81 (19)

0.74

Upper GI disease (e.g., ulcer, hernia, reflux)

26 (6)

77 (18)

<0.01

Depression

39 (9)

62 (15)

<0.01

Anxiety or panic disorders

7 (2)

22 (5)

<0.01

Visual impairment (e.g., cataracts, glaucoma)

2 (1)

9 (2)

<0.01

Hearing impairment (e.g., hard of hearing with aids)

1 (1)

1 (1)

0.32

Degenerative disc disease (e.g., spinal stenosis)

8 (2)

14 (3)

0.01

FCI Score, median (IQR)**

1 (0–2)

2 (1–3)

<0.01

  1. Abbreviations: ARDS, acute respiratory distress syndrome; COPD, chronic obstructive pulmonary disease; GI, gastrointestinal; MS, multiple sclerosis; TIA, transient ischemic attack.
  2. * Comparison made using McNemar’s test.
  3. ** For the FCI score, comparison made using Wilcoxon signed-rank test.