Table 1.
Clinical and Hormonal Characteristics of PBMAH Patients
Characteristics | Total Cohorta,b | Mutateda,b | Wild-Typea,b | P Valuec |
---|---|---|---|---|
Number of patients | 98 | 24 | 68 | |
Age, y | 53 [30–75] | 49 [30–73] | 55 [32–75] | .046 |
Sex (F/M), % | 64.3/35.7 | 50/50 | 69.1/30.9 | .137 |
CS, % | .007 | |||
Clinical | 43 | 71 | 35 | |
Subclinical | 47 | 29 | 53 | |
Absent | 10 | 0 | 11.8 | |
Hypertension, %d | 69.3 | 94.7 | 63.5 | .009 |
Diabetes, %d | 33.7 | 52.9 | 30.2 | .093 |
Hypokalemia, %d | 12.9 | 17.6 | 11.3 | .441 |
ACTH, %e | .003 | |||
<10 pg/mL | 60 | 92 | 53 | |
10 to 15 pg/mL | 30 | 8 | 34 | |
>15 pg/mL | 9 | 0 | 12 | |
UFC (% of increase above upper limit of normal)e | 204 [11–2433] | 355 [11–1626] | 167 [16–2433] | .006 |
Plasma cortisol after 1 mg dexamethasone overnight test, μg/dLe | 9.9 [0.3–36.7] | 18.6 [3.6–36.7] | 6.3 [0.3–2.7] | <.001 |
Plasma cortisol at midnight, μg/dLe | 12.1 [1.4–71.7] | 20 [4.6–71.7] | 9.4 [1.4–42.8] | .019 |
Morning plasma cortisol, μg/dLe | 14.1 [4.7–57.1] | 16.9 [5.5–34] | 13.8 [4.7–57.1] | .245 |
Plasma cortisol after ACTH 1–24 250 μg, μg/dLe | 39.2 [11.1–123] | 48.9 [19.8–81.3] | 37 [11.1–123] | 0.058 |
Basal 17OHP, ng/dLe | 99 [0–726] | 132 [0–594] | 99 [0–726] | .28 |
17OHP after ACTH 1–24 250 μg, ng/dLe | 990 [132–7128] | 1089 [264–5578] | 990 [132–7128] | .79 |
Aldosterone/direct renin ratio, pmol/L/μIU/mLe | 22 [0–331] | 33 [0–331] | 19 [0–133] | .45 |
Food response, %d | 17.6 | 0 | 28.1 | <.001 |
Upright response, %d | 52.9 | 68.8 | 46.9 | .221 |
Abbreviations: F, female; M, male.
Quantitative variables are presented as means [minimum-maximum]; qualitative variables are presented as relative counts percentage.
Of the 98 patients, 24 were classified as ARMC5-mutated, 68 as ARMC5-wild type, and six were excluded for the comparison, presenting variants of uncertain significance.
Comparison of mutated patients vs wild-type patients.
Data about hypertension were available for 88 patients (19 mutated, 63 wild-type), diabetes for 86 (17 mutated, 63 wild-type), hypokalemia for 85 (17 mutated, 62 wild-type), and abnormal response for 51 (16 mutated, 32 wild-type).
ACTH was available for 97 patients, UFC for 94, morning plasma cortisol for 74, cortisol after suppression test for 77, cortisol at midnight for 67, aldosterone/renin ratio for 85, basal 17OHP for 80, cortisol after ACTH for 74, and 17OHP after ACTH for 68.