Screening of COPD patients for abdominal aortic aneurysm

Figures & data

Figure 1 Study population flowchart.

Abbreviations: COPD, chronic obstructive pulmonary disease; AAA, abdominal aortic aneurysm.

Table 1 Basic characteristics and pulmonary function

	Mean ± SD or n (%)
Age (years)	70.2±9.1
Male	319 (54.2)
Female	270 (45.8)
BMI (kg/m^2)	25.4±6.2
Package years	50.2±36.1
CRP (mg/L)	26.8±48.8
Stage of COPD
I + II	133 (23.5)
III	118 (20.8)
IV	315 (55.7)
	Mean ± SD median (range)
FEV1 L	0.9±0.6
	0.9 (0.31–2.8)
FEV1 % pred	36.8±20.6
	35.7 (11.4–108.1)
VCmax L	2.0±2.5
	2.0 (0.62–5.12)
VCmax % pred	57.8±27.4
	60.3 (18.3–139.7)
FEV1	43.2±19.5
VCmax	45.0 (16–86.0)

Abbreviations: SD, standard deviation; BMI, body mass index; CRP, C-reactive protein; COPD, chronic obstructive pulmonary disease; FEV₁, forced expiratory volume in 1 second; pred, predicted; VC, vital capacity; max, maximum.

Table 2 Comorbidities and potential contributory factors (n=589)

	n	%
Smoker
Former	388	66.0
Current	158	26.9
Never	41	7.3
Hypertension	369	63.1
Coronary heart disease	139	23.7
Myocardial infarction	78	13.3
Peripheral arterial occlusive disease	65	11.1
Stroke	44	7.5
All kinds of arterial diseases	210	35.7
Diabetes mellitus	141	24.1
Hyperlipoproteinemia	59	10.1
Pulmonary embolism	26	4.4
Deep vein thrombosis	27	4.6
Hyperuricemia	3	0.5
Abdominal pain	43	7.3
Malignancy	127	21.6
Malignancies of the lower respiratory tract	91	15.4
Family history of abdominal aortic aneurysm	16	2.7

Table 3 Comorbidities of patients with AAA (≥30 mm; n=22)

Comorbidity	n	%
Male	17	77
Current or former smoker	20	91
Hypertension	14	63
Coronary heart disease	10	42
Myocardial infarction	4	18
Peripheral arterial occlusive disease	5	23
Stroke	3	14
Diabetes	4	18
Hyperlipoproteinemia	5	23
Malignancy	8	36

Abbreviation: AAA, abdominal aortic aneurysm.

Table 4 Diameter of identified AAA (≥30 mm)

Diameter (mm)	Number of patients
30–35	5
36–40	4
41–45	5
46–50	1
51–60	1
61–70	3
>70	2
Not specified	1
Total	22

Abbreviation: AAA, abdominal aortic aneurysm.

Figure 2 Comorbidities and risk factors in COPD.

Note: COPD patients and the likelihood of finding an AAA expressed as odds ratios.
Abbreviations: CHD, coronary heart disease; PAOD, peripheral arterial occlusive disease; AAA, abdominal aortic aneurysm; COPD, chronic obstructive pulmonary disease; CI, confidence interval; vs, versus.