Objectives Low response rates in epidemiologic research potentially lead to the recruitment of a non-representative sample of controls in case-control studies. Problems in the unbiased estimation of o
SNP, single nucleotide polymorphism. Allele data and basic allelic Chi-square test were analyzed using Plink 1.07. Asymptotic P value, estimated odds ratio (OR) and 95% confidence interval (CI) were c
The “retrospective” cohort was those subjects who had both positive Lyme disease tests and contemporaneous clinical documentation supporting that diagnosis. The “referral” cohort included individuals
