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Meta-Analysis
. 2021 Apr;94(4):625-635.
doi: 10.1111/cen.14392. Epub 2020 Dec 26.

Sex differences in acromegaly at diagnosis: A nationwide cohort study and meta-analysis of the literature

Affiliations
Meta-Analysis

Sex differences in acromegaly at diagnosis: A nationwide cohort study and meta-analysis of the literature

Jakob Dal et al. Clin Endocrinol (Oxf). 2021 Apr.

Abstract

Objective: Data on sex differences in acromegaly at the time of diagnosis vary considerably between studies.

Design: A nationwide cohort study including all incident cases of acromegaly (1978-2010, n = 596) and a meta-analysis on sex differences in active acromegaly (40 studies) were performed.

Method: Sex-dependent differences in prevalence, age at diagnosis, diagnostic delay, pituitary adenoma size, insulin-like growth factor 1 (IGF-I) and growth hormone (GH) concentrations were estimated.

Results: The cohort study identified a balanced gender distribution (49.6% females) and a comparable age (years) at diagnosis (48.2 CI95% 46.5-49.8 (males) vs. 47.2 CI95% 45.5-48.9 (females), p = 0.4). The incidence rate significantly increased during the study period (R2 = 0.42, p < 0.01) and the gender ratio (F/M) changed from female predominance to an even ratio (SR: 1.4 vs. 0.9, p = 0.03). IGF-ISDS was significantly lower in females compared to males, whereas neither nadir GH nor pituitary adenoma size differed between males and females. In the meta-analysis, the weighted percentage female was 53.3% (CI95% 51.5-55.2) with considerable heterogeneity (I2 = 85%) among the studies. The mean age difference at diagnosis between genders was 3.1 years (CI95% 1.9-4.4), and the diagnostic delay was longer in females by 0.9 years (CI95% -0.4 to 2.1). Serum IGF-I levels were significantly lower in female patients, whereas nadir GH, and pituitary adenoma size were comparable.

Conclusion: There are only a minor sex differences in the epidemiology of acromegaly at the time of diagnosis except that female patients are slightly older and exhibit lower IGF-I concentrations and a longer diagnostic delay.

Keywords: GH; IGF-I; acromegaly; age; diagnostic delay; gender; sex.

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References

REFERENCES

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