SMART Flags

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This topic contains 1 reply, has 2 voices, and was last updated by  SMART 10 years, 2 months ago.

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  • February 22, 2016 at 6:48 am #2093

    Yusra
    Participant

    I am reliably informed that SMART recommends analysis of anthropometric results using the SMART Flags (+-3 Range).
    I have selected the SMART Flags option but still noticed values such as +2.540 being among the Flags in my Plausibility output. Could you kindly explain this phenomenon, thanks.

    February 29, 2016 at 8:43 pm #2109

    SMART
    Keymaster

    The plausibility check assigns SMART flags on data points that are +-3 Z-scores from MEAN OF SURVEY POPULATION (i.e. the observed mean) and NOT from reference mean. This is to compare each child within its own population that was surveyed, thus SMART flags range will be different in each sample/survey.

    Example
    Q. If we did a survey and the mean weight for height Z-score of the survey is -0.8, what would be the range for SMART flags?
    A. Lower [-3 + -0.8 = -3.8] and upper [+3 + -0.8 = +2.2] range of SMART flags. Any children that fall below or above these limits (-3.8, +2.2) will be ‘flagged’ and excluded from the analysis. WHZ flags are in bold in the plausibility check.

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