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Table 1 The variation of hand hygiene compliance rate in the three stages obtained by the direct observation method

From: Comparison of two electronic hand hygiene monitoring systems in promoting hand hygiene of healthcare workers in the intensive care unit

HHCR Coef. Ne Wey-West Std. Err. t P > |t| [95% CI]
_t .250 .1060 2.36 0.026 .033 .467
_x2018m3 1.667 1.885 0.88 0.384 −2.194 5.528
_x_t2018m3 −.115 .254 −0.45 0.654 −.635 .405
_x2019m2 12.324 3.152 3.91 0.001 5.867 18.780
_x_t2019m2 1.242 .440 2.82 0.009 .341 2.144
_cons 59.281 .742 79.89 0.000 57.761 60.801
  1. Note. HHCR hand hygiene compliance rate, Coef coefficient, Std. Err. standard error, CI confidence interval, _t time since the start of the study, m month, _x(trperiod) dummy variable which representing the intervention periods (preintervention periods 0, otherwise 1), _x_t(trperiod) the interaction of _x and _t; _cons, constant