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    Descriptive Statistics Calculator
    for evaluating binary endpoints from controlled trials
    created by Peter Loewen, Pharm.D. ploewen@interchange.ubc.ca
    2x2 Table event no event
    exposed A B
    Experimental group name: not exposed C D
    Events in Exp Group
    Experimental N exposed
    not exposed
    Control group name:
    Events in Ctrl Group
    Control N rate:
    rate:
    ARR ARR: Absolute Risk
    Reduction
    ARR 95%CI: ARR 95%CI (+/-)
    upper bound=
    lower bound=
    ARR 90%CI: ARR 90%CI (+/-)
    upper bound=
    lower bound=
    NNT NNT (negative = NNH): Number Needed to Treat/Harm
    95%CI upper bound=
    95%CI lower bound=
    90%CI upper bound=
    90%CI lower bound=
    RR RR: Relative Risk
    RR 95%CI (+/-): SE(logRR)
    RR 95%CI upper bound
    RR 95%CI lower bound
    log(RR):
    log(RR) 95%CI (+/-):
    log(RR) 95%CI upper bound
    log(RR) 95%CI lower bound
    RRR RRR: Relative Risk
    Reduction
    RRR 95%CI (+/-):
    RRR 95%CI upper bound
    RRR 95%CI lower bound
    OR OR: Odds Ratio
    OR 95%CI (+/-): SE(logOR)
    OR 95%CI upper bound
    OR 95%CI lower bound
    log(OR):
    log(OR) 95%CI (+/-):
    log(OR) 95%CI upper bound
    log(OR) 95%CI lower bound