Exact(3)
If no response was received after 3 weeks, a reminder postcard was sent, followed by a replacement survey 3 weeks later.
Six weeks after the initial mail-out, potential participants who had still not returned a survey were sent a replacement survey package.
In order to minimise non-response for subsequent annual data collection waves, in addition to the thank you/reminder letter and targeted replacement survey mail-outs, targeted reminder letters are sent to those participants who have still not returned a survey 3 weeks after the replacement survey mail-out (i.e. 9 weeks after the initial mail-out).
Similar(57)
Strategies to maximise participation included reminder cards, telephone calls and replacement surveys.
In 2010, due to concerns about the retention rate, targeted reminder telephone calls were also made to those participants who had still not returned a survey after the replacement surveys were sent out.
The Hip Replacement Expectations Survey and Knee Replacement Expectations Survey were translated according to the international guidelines described by Beaton et al. [ 16].
Now that the Hip Replacement Expectations Survey and the Knee Replacement Expectations Survey are available in Dutch, it is possible to determine patients' expectations of total hip or knee replacement in another culture and healthcare setting.
In conclusion, the Dutch Hip Replacement Expectations Survey and the Dutch Knee Replacement Expectations Survey are both reliable instruments to determine patient expectations before total hip or knee replacement.
Second aim of the study was to determine the test-retest reliability and concurrent validity of the Dutch Hip Replacement Expectations Survey and the Dutch Knee Replacement Expectations Survey.
As there is no instrument available to determine patient expectations which can be considered the gold standard, the only available questionnaire described in the literature, the Expectation WOMAC, was chosen to determine concurrent validity of the Dutch Hip Replacement Expectations Survey and the Dutch Knee Replacement Expectations Survey [ 17].
For final versions see Additional files 1 and 2. Patients on the waiting list for primary total hip or knee arthroplasty at University Medical Center Groningen (UMCG) or Martini Hospital Groningen (MZH) in the Netherlands were sent the Dutch Hip Replacement Expectations Survey or the Dutch Knee Replacement Expectations Survey.
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