No significant demographic differences were observed between the respondents of the pre- and post-surveys.
Paired student t-tests were used to determine if there were any significant differences between the respondents' perceived risk of injury in taekwondo and their perceived risk of injury in other sports.
While there were no easily identifiable differences between the respondents and the rest of the clinician group, this does not mean that there was not some other, and possibly very important, unmeasured difference.
A statistically significant difference in the education level was noticed between the respondents of the two hospitals.
A significant difference between the respondents was observed in the perception of progress in the adaption of delivery service priority area: the NAP perceived a progress of 60%%, while international cooperation representatives cited that progress was zero.
If there is little difference between the respondents and non-respondents, a smaller percentage of return might be acceptable.
Table 2 lists the descriptive statistics of the sample and respondents together with a t-test of mean differences between the groups (respondents vs. non-respondents).
No statistically significant differences were found between the respondents' rating of adequacy of their diabetes knowledge among three groups of respondents who had completed, defaulted or were attending an education programme.
There were no major differences between the characteristics of the respondents at baseline and those of the non-respondents at five-month follow-up (Table 1).
First, self-completed and proxy-completed responses were examined to establish differences between the groups of respondents (unadjusted comparisons).
