Reference Ranges (RR) for Immunoassay tests. Upper and Lower Reference Limits (URLs and LRLs) quoted by Abbott and those determined in the current study (MMUH – Mater Misericordiae University Hospital) are shown. Female-specific RRs (+CIs, n = 100–118), as determined using the robust method [7] (where n < 120) are shown in italics. Differences (%) between Abbott and MMUH URLs/LRLs are also shown. #, ##Abbott based RRs where the Architect was specifically stated (#) or not (##). CI = Confidence Interval, NA = Not Available, M = Male.