Table 2.
Distribution of follicle-stimulating hormone, luteinizing hormone, shear wave elastography and rete testis thickness by testicular volume subgroup
| Variable | TV ≤7.0 cm3 | TV 7.1–9.0 cm3 | TV 9.1–11.0 cm3 | TV 11.1–13.0 cm3 | TV ≥13.1 cm3 | |||||
|---|---|---|---|---|---|---|---|---|---|---|
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| OA (n=0) | NOA (n=81) | OA (n=4) | NOA (n=40) | OA (n=19) | NOA (n=24) | OA (n=20) | NOA (n=12) | OA (n=81) | NOA (n=9) | |
| FSH (IU l−1) | NA | 29.3±16.1 | 5.6±1.7a | 27.1±7.5a | 5.1±2.1a | 22.5±13.9a | 4.3±1.9a | 18.7±10.8a | 4.9±2.3a | 20.3±17.3a |
| LH (IU l−1) | NA | 13.8±12.9 | 4.0±3.0 | 9.9±5.3 | 5.2±2.8a | 11.8±9.1a | 3.9±1.7a | 13.4±10.9a | 4.3±2.3a | 14.6±13.5a |
| SWE (kPa) | NA | 3.2±0.9 | 2.5±0.2 | 2.8±0.7 | 2.8±0.5 | 3.2±0.9 | 2.7±0.5 | 2.9±1.0 | 2.6±0.4a | 4.0±1.7a |
| RTT (mm) | NA | 1.5±0.8 | 2.1±0.4 | 1.5±0.9 | 2.3±0.6a | 1.2±0.6a | 2.4±0.7 | 1.9±0.8 | 2.2±0.6 | 1.9±0.5 |
aP<0.05, significant difference between OA and NOA groups. Values are presented as mean±s.d. FSH: follicle-stimulating hormone; LH: luteinizing hormone; SWE: shear wave elastography; RTT: rete testis thickness; OA: obstructive azoospermia; NOA: nonobstructive azoospermia; s.d.: standard deviation; TV: testicular volume; NA: not available