Comparability of a computer touch screen versus written method for collecting oral health related quality of life (OHRQOL) data / Maznurfarhatunnisak Anowar
Current advances in technology have enabled the growth of computerized questionnaires that provide many benefits over the paper-based mode of administration, such as automatic data entry, eliminate errors during data handling, storage, time and cost effectiveness and able to provide immediate res...
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Format: | Thesis |
Published: |
2017
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Online Access: | http://studentsrepo.um.edu.my/10435/4/maznur.pdf http://studentsrepo.um.edu.my/10435/ |
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Summary: | Current advances in technology have enabled the growth of computerized
questionnaires that provide many benefits over the paper-based mode of administration,
such as automatic data entry, eliminate errors during data handling, storage, time and
cost effectiveness and able to provide immediate results automatically. However, before
a computerized questionnaire can be implemented in a clinical setting, its equivalence
with its original paper-based questionnaires must first be demonstrated.
This study was divided into two parts. The purpose of the study for part 1 was to
evaluate a computer touch screen version of Oral Health Impact Profile (OHIP-14)
questionnaires (CTSA) against the traditional written paper version (QBA) for the score
agreement, respondent’s acceptance and preference, and time for completion.
Meanwhile, for part 2, the purpose of the study was to investigate the OHIP-14 score
agreement obtained using English (EQA) and Malay language version (MQA) via webbased questionnaires.
Fifty-nine students and sixty students were recruited from the Tun Syed Zahiruddin
Residential College in University of Malaya for each part of the study consecutively. A
randomized crossover design was used for both parts, with respondents randomly
assigned into two groups. In part 1, respondents in group A completed CTSA first
followed by QBA and group B completed QBA first followed by QBA. As for part 2,
group A respondents answered EQA first followed by MQA and group B completed
these questionnaires in the reverse order. All the respondents answered both versions of
the questionnaire with a time interval of at least 3 hours between questionnaires. Times
taken to complete both versions were recorded for both part 1 and 2. Respondents were
asked about the preferred mode of administration in part 1.
Intraclass correlation coefficients between CTSA and QBA demonstrated a very
good agreement for total score (0.90), while for the subscales the ICCs showed a dual
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mixture of high and moderate agreement (0.58-0.90). The weighted kappa coefficients
of individual items also demonstrated a substantial to fair agreement (0.25-0.78)
between CTSA and QBA. The CTSA was well accepted and 78% of the respondents
preferred CTSA over QBA. The time required to complete the CTSA did not differ
statistically from the QBA. Meanwhile, for the part 2, the ICCs between EQA and
MQA showed an excellent agreement at both the total score (0.92) and subscales level
(0.76-0.93). The weighted kappa coefficients for items showed a substantial to fair
agreement (0.33-0.72).
The CTSA is equivalent to its original written questionnaires which show a strong
score agreement, eliminate the need for data entry and able to provide immediate
results. It is well accepted and preferred over the QBA with no significant difference
found for the time completion. The level of agreement between English and Malay
version of OHIP-14 questionnaires has showed a very high level of agreement.
Therefore, both languages can be used for literate Malaysian population. |
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