§The eight general practices that did not have a practice nurse were excluded from the analysis for this item: the denominator is n = 5071 (4874/197).
The later study [ 22] reported that because item 10 (the thought of harming myself) clearly was different from the other items, a principal component analysis without this item still yielded an anxiety and depressive symptoms subscales.
Item 43 (How has your mucus been?) from the CFQ-R was also removed from the regression analysis as this item was a sub-question which not all participants provided a response.
Therefore, we selected one of the six patient-physician communication variables ("the physician's explanation is clear enough to me") as a representative factor in the main analysis because this item was thought to strongly reflect the perceived understandability of the physician's communication.
But the analysis revealed that this item was weakly correlated with the score of its dimension Health Awareness and moderately correlated with the scores of Worry and Body Change Concerns.
For this reason, patients/parents filled out the original diary, but, during analysis, the items of this diary were also dichotomised as no (0)=absence of symptom or yes (1)=presence of symptom (which included the 1, 2 and 3 of the original diary), yielding a total score in a single day of 0 12.
*column totals may not add to total due to missing data; † denotes a statistically significant association; ‡ denotes items that were used in the SDB analysis; no formal statistical analysis was conducted for this item which allowed for multiple possible responses.
662, which directed amendment of this analysis by striking item 521A and adding item "512A", was executed by striking item 521A "Assistance for United States Olympic Committee" and adding item 512A in the position for item 521A, to reflect the probable intent of Congress.
This item analysis resulted in the exclusion of 10 items from the TRC-e-4 due to their inadequate psychometric characteristics.
