The Prevalence of NAFLD and Fibrosis in Bariatric Surgery Patients and the Reliability of Noninvasive Diagnostic Methods

Table 2

Diagnostic reliability of ultrasound in the diagnosis of steatosis in the study population.

	Ultrasound
Sensitivity	95% (95% CI: 84-99)
Specificity	50% (95% CI: 18-81)
Likelihood ratio +	1.91% (95% CI: 1.1-3.5)
Likelihood ratio -	0.1% (95% CI: 0.02-0.4)
Positive predictive value	89.4% (95% CI: 82-94)
Negative predictive value	71% (95% CI: 36-92)
Accuracy	87% (95% CI: 75-94)