Sentence examples for missing questionnaires were from inspiring English sources

Patients with complete and missing data (i.e. missing questionnaires) were compared to examine whether the assumption of data missing in a non-random way could be rejected.

Scores for missing questionnaires were imputed as the treatment group mean.

However, where more than half of the values needed were missing, questionnaires were excluded from the analysis.

The patients with missing questionnaires were equally distributed among the three postoperative pain categories: five with mild, five with moderate, and five with severe postoperative pain.

To ensure return of all completed follow-up questionnaires, all hospitals with at least three missing questionnaires were personally visited by a medical student.

It is possible that among the missing questionnaires were many couples who had separated, which could explain some results, such as those observed regarding the relationships in which women adjusted poorly compared to the men.

The study was announced on the university hospital intranet, a platform accessible to all employees, and a reminder to send back missing questionnaires was placed one month after the study start.

The incidence of SCD was calculated based on these questionnaires, but no information about missing questionnaires is provided.

The post-study questionnaire was completed by 75%% (45/60) of HSAs, with the majority of missing questionnaires being from the Kasinthula catchment area (47 % [8/17] missing).

This notion is supported by our finding that participants with fewer missed questionnaires were more likely to be working, and therefore to have access to email reminders.

Missing questionnaires are a frequent problem in QoL studies and may produce biased results.