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Table 1 Patient and adrenal characteristics at baseline (n patients = 194, n incidentalomas = 231)

From: Limited value of long-term biochemical follow-up in patients with adrenal incidentalomas-a retrospective cohort study

Patient characteristics

 

Mean age (SDa)

65 (12)

Women, n

122 (63%)

Co-morbidity

 

Hypertension, n

108 (56%)

Hyperlipidemia, n

52 (27%)

Diabetes (type 2), n

41 (21%)

COPDb, n

33 (17%)

Ischemic heart disease, n

24 (12%)

Previous history of malignancy, but no evidence of present disease at the time the adrenal incidentaloma was detected

24 (12%)

Stroke, n

11 (6%)

Heart failure, n

7 (4%)

Peripheral arterial diseasecss n

7 (4%)

Adrenal characteristics

 

Unilateral incidentaloma (right), n

44 (23%)

Unilateral incidentaloma (left), n

111 (57%)

Unilateral incidentaloma (side not stated), n

1 (0.5%)

Bilateral incidentalomas, n

37 (19%)

Mean size at initial adrenal imaging, mm (SD1)c

21 (9.3)

Lipid rich (≤10 Hounsfield units)d

79 (81%)

Lipid poor (>10 Hounsfield units) with an absolute washout < 50% indicating benign tumoure

9 (45%)

Lipid poor (>10 Hounsfield units) with an absolute washout ≥ 50% indicating malign tumoure

2 (10%)

  1. aStandard Deviation.
  2. bChronic Obstructive Lung Disease.
  3. cFor incidentalomas examined with adrenal imaging where size was stated (n = 218).
  4. dFor incidentalomas were attenuation and washout was quantified (n = 98).
  5. eFor incidentalomas were both attenuation and washout were quantified (n = 20).