Research Article
A Network Investigation on Idiopathic Hypogonadotropic Hypogonadism in China
Table 2
Comparison of general characteristics of IHH patients between the present network investigation and studies reported in the literature.
| | Study group | Present study single center | Nelly Pitteloud* single center | Richard Quinton** multicenter |
| | Study period | 5 months | 20 years | 25 years | | Men (%) | 74 (100) | 78 (100) | 170 (79.1) | | Age at evaluation (yr) | | | NA | | Family history (%) | 0 (0) | 19 (24.4) | 52 (24.2) | | Body mass index (kg/m2) | | | NA | | Decreased testosterone (%) | 74 (100) | 78 (100) | 170 (100) | | Pubertal development (%) | 5 (6.8) | 6 (7.7) | NA | | Small penis (%) | 16 (21.6) | 12 (15.4) | NA | | Testicular volume (mL) | | | 2.1 (1.9–2.3) | | Breast enlargement (%) | 26 (35.1) | 26 (33.3) | NA | | Cryptorchidism (%) | 20 (27.0) | 23 (29.5) | 80 (49.7) | | Cryptorchidism surgery (%) | 17 (85.0) | 67 (85.9) | 55 (68.8) |
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Reference [9].
**Reference [10].
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