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运用统计学中的t检验法,量化研究多参数监护仪在不同检定周期间隔内的检定数据,旨在为其检定周期的确定提供一些基本的统计数据,为从事多参数监护仪检定的计量工作者提供一些参考。统计学t检验证明,在99%置信概率下,6个月后的无创血压这一参数的检定结果较初次检定无显著差异,而1年后该参数呈显著差异。检定规程中“检定周期不超过1年”的表述无误,给出建议在实际的检定工作中宜将周期定为6个月。
The use of statistical t-test, quantitative multi-parameter monitor in different test cycle interval test data, designed to determine the test period to provide some basic statistics, in order to engage in multi-parameter monitor calibration measurement work Provide some reference. The statistical t-test showed that at 99% confidence, the noninvasive blood pressure after 6 months had no significant difference from the initial test, but this parameter was significantly different after 1 year. Verification procedures “verification period of not more than 1 year ” is correct, given recommendations in the actual verification of the work cycle should be set to 6 months.