Also, in the validation study, the informant-report group was used in addition to the self-report group.
Self-reported influenza status was reclassified as a binary variable by combining 'definite' and 'possibly' groups into a 'positive self-report' group for the purposes of this analysis.
Therefore, participants in the validation study included centenarians (n=19) in the self-report group and their children (n=26) in the informant-report group.
EE was moderately and negatively associated with neuroticism in the self-report group and was moderately associated with extraversion in the informant-report group.
The results of the bivariate correlations (Tables 3) demonstrated that, in the self-report group of centenarians, PATL was positively associated with extraversion (r =.82, p <.01) and conscientiousness (r =.53, p <.05).
PATL was also moderately associated with conscientiousness in the self-report group, and moderately to highly associated with dispositional optimism and neuroticism (negative correlation) in the informant-report group.
Of these, 7 centenarians in the self-report group were excluded due to health issues and cognitive impairment (scores of lower than four points on the Memory Impairment Screen by Telephone) [ 40].
To clarify that this result is not due to the performance of a couple of individuals, the data for each parent in the self-report group were ordered according to performance on non-word repetition Table 5).
Centenarians in both self- and informant-report groups tended to be optimistic, easygoing, and outgoing and to consider laughter as an important part of their life, based on the raw mean scores of items on the POPS (ranging from 3.34 to 4.09 in the self-report group and from 3.68 to 4.21 in the informant-report group on a scale of 1 through 5).
The participants of the self-report group in the validation study (n = 19) had a mean age of 99.8 ±2.87 and were predominantly female (68%) with a mean score of 5.63±1.54 in the MIS-T, indicating that all were cognitively intact.
For adults in the community sample, point estimates of seropositive status ranged from 21.3% to 25.1% across the three self-report groups; for under 18s in the same sample, seropositive rates were between 40.1% and 45.9%, which was the highest among all three sample groups; and for HCW, the range was between 25.7% and 33.0% seropositive.
