Table 3.

Sentivity and specificity of statistically significant variables

Tests	Formula	Concentric Peak Torque (CPT) Results (IC95%)		Concentric Power (CJ) Results (IC95%)
Sensitivity	$\frac{a}{a+b}$	5.47%	3.10% to 8.87%	4.97%	2.87% to 7.94%
Specificity	$\frac{d}{c+d}$	98.70%	96.71% to 99.65%	98.85%	96.67% to 99.76%
Positive Likelihood Ratio	$\frac{Sensitivity}{1-Specificity}$	4.22	1.42 to 12.55	4.31	1.27 to 14.62
Disease prevalence	$\frac{a+b}{a+b+c+d}$	0.96	0.93 to 0.99	0.96	0.93 to 0.99
Positive Predictive Value	$\frac{a}{a+c}$	47.08%	42.96% to 51.23%	55.33%	51.18% to 59.42%
Negative Predictive Value	$\frac{a}{a+c}$	78.95%	55.75% to 91.78%	84.21%	61.10% to 94.77%
Accuracy	$\frac{a+d}{a+b+c+d}$	54.00%	53.22% to 54.77%	45.65%	44.95% to 46.35%

a (True Positive), b (False Positive), c (False Negative), d (True Negative).

IC 95%, 95% Interval of Confidence.