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Table 1 Comparison of accuracy for each tested sex identification method

From: Biological sex identification in the endangered dusky gopher frog (Lithobates sevosa): a comparison of body size measurements, secondary sex characteristics, ultrasound imaging, and urinary hormone analysis methods

Method Overall accuracy % accuracy: males % accuracy: females
Body length (SVL) 73.9 % 81.5 % 63.2 %
Body weight 71.7 % 77.8 % 63.2 %
Nuptial pads 95.7 % 92.6 % 100.0 %
Ultrasound 93.4 % 88.9 % 100.0 %
Urinary testosterone 66.7 % 44.0 % 100.0 %
Urinary estrone 83.3 % 100.0 % 58.8 %
Urinary hormones (T/E ratio) 95.2 % 92.0 % 100.0 %
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