Research Article
Reference Intervals of Total Testosterone in Adult Filipino Men
Table 3
Reference ranges for total testosterone in young adult males across different ethnic groups.
| Study author | Race | Assay | N | 95% range (nmol/l) |
| Population-based | Friedrich | White | CLEIAa | 416 | 10.4–32.3 | 2008 (20) | (Germany) | Travison | White | LC-MSb | 400 | 9.16–31.78 | 2017 (24) | (US and Europe) | Shen | East Asian | CLEIA | 227 | 13.61–19.28 | 2013 (26) | (China) | Iwamoto | East Asian | RIA | 1172 | 6.96–26.00 | 2004 (27) | (Japan) | Healthy volunteers | Shatzl | White | CLEIA | 133 | 10.4–28.8 | 2003 (21) | (Austria) | Boyce | White | RIAc | 199 | 10.04–38.76 | 2004 (22) | (UK) | Elmlinger | White | CLEIA | 446 | 8.7–29.6 | 2005, (23) | (Germany) | Neale | White | LC-MS | 67 | 10.6–31.9 | 2013 (24) | (Wales) |
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aChemiluminescence enzyme immunoassay; bliquid chromatography-mass spectrometry; cradioimmunoassay.
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