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. Author manuscript; available in PMC: 2024 Feb 1.
Published in final edited form as: Fertil Steril. 2022 Nov 5:S0015-0282(22)01995-1. doi: 10.1016/j.fertnstert.2022.11.002

Table 2.

Verification of SpermCheck-V results versus hemocytometer-derived sperm concentration using a threshold of positive at 0.25 Versus 0.2 million/ml

Number of samples Hemocytometer-derived Sperm Concentration (Gold Standard)
SpermCheck-V Results Sperm concentration >0.25 Sperm concentration ≤ 0.25 Sperm concentration >0.20 Sperm concentration ≤0.20
Positive 73 69 4 72 1
Negative 144 0 144 0 144
Total 217 69 148 72 145
Diagnostic accuracy Value 95% CI Value 95% CI
Sensitivity 100% 0.948 to 1.000 100% 0.95 to 1.000
Specificity 97.3% 0.932 to 0.993 99.3% 0.962 to 0.999
Accuracy 98.2% 0.954 to 0.995 99.5% 0.975 to 0.999