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Table 4 Patients to answered to the PREMs questionnaire over time: absolute numbers of respondents and response rate, as ratio between patients who responded and patients who accepted to take part to PREMs, and relative mean, minimum, maximum and standard deviation)

From: Using patient-reported measures to drive change in healthcare: the experience of the digital, continuous and systematic PREMs observatory in Italy

   Respondents by monthResponse rate by month
Total by monthTotal RespondentsMean Response RateMeanMinMaxSDMeanMinMaxSD
mar-18133%11133%33%33%
apr-183135%31313135%35%35%
may-185840%58585840%40%40%
jun-185940%59595940%40%40%
jul-186336%31,5115228,9936%35%37%1%
aug-189234%4640528,4934%26%42%12%
sep-1811935%59,5497014,8535%29%42%9%
oct-1823735%47,4308320,5535%17%45%11%
nov-1879744%88,562824373,8742%21%89%23%
dec-1877929%43,28112038,7628%9%47%11%
jan-19109328%13915642,5027%12%39%8%
feb-19128730%61,29219750,0829%12%37%12%
Total4616        
Mean384,6735%        
Min128%        
Max128744%        
SD467,885%        
  1. Note. Time-period: March 2018–February 2019