In the questionnaires scores with age and gender norms (CTRS and CPRS) status effects interacted with gender effects: female probands deviated to a weaker extent (about one SD less) from the population norm than male probands, particularly on the scales including hyperactive symptoms.
But most QOL studies focusing on RTR have assessed QOL with generic questionnaires [ 10], and among studies with QOL-specific questionnaires, its correlation with age is not precisely discussed [ 17- 19].
A previous study of the validity of self-reported smoking in a remote Aboriginal community also used cotinine, but found good agreement between the self-report and cotinine measures [ 16]. n contrast to that study, the study members included in the investigation of validity in the ABC were all young adults, and it is possible that accuracy of responses to questionnaires may vary with age group.
Further aspects should be considered when interpreting the data: Firstly, the current study did not include a control group to compare MI questionnaire values with age-matched healthy controls.
Year 5 body mass index (kg/m) and BMD were used as the main outcomes, as the Year 5 time point was the first clinical measurement after the food frequency questionnaire with no age exclusion criterion.
Similar numbers of male (n = 50/97, 51.5%) and female (n = 47/97, 48.5%) collaborators responded to both questionnaires, with a median age of 23 (range 19 35).
As a general rule, patients should not be asked to complete questionnaires with a reading age of more than ten [ 26], which corresponds roughly to readability grade FKG=5.
1 14 days before surgery, patients filled out questionnaires with baseline data (age, sex, duration of leg pain (months)) and intensity of leg and back pain (VAS) at the preoperative visit.
The mean time for completing the questionnaire increased statistically significantly with age (age 65to6969: 17 minutes; age 70 to 74: 19 minutes; age 75 to 79: 22 minutes; age 80 to 84: 25 minutes; and 85 years and older: 24 minutes) (P < 0.001).
Knowledge about childhood autism (KCA) as measured by scores on KCAHW questionnaire was significantly associated with age group distribution of the healthcare workers, with those age group of fourth decades and above more likely to have higher mean score (p = 0.004) and previous experience of managing children with autism spectrum disorders (ASD) (p = 0.000).
