Fig. 1From: Estimating regional prevalence of chronic hepatitis C with a capture-recapture analysisLincoln-Petersen with Chapman modification. N = estimated number of cases in the population; n1 = number of cases in first sample; n2 = number of cases ‘captured’ in second sample; m2 = number of cases that were ‘recaptured’ in second sample; Var = variance; 95CI = 95% confidence interval [7,8,9]Back to article page