Table 1.
Group differences between cytomegalovirus (CMV) immunoglobulin G (IgG) seronegative (CMV−) and seropositive (CMV+) participants in patient-control (PC) status, sex, age, education years and handedness. For the whole sample, correlations with the total cortical surface area (SA) and the overall mean cortical thickness (CT) are shown. P values < .05 shown in bold.
| CMV− | CMV+ | Correlation with SA | Correlation with CT | ||||||
|---|---|---|---|---|---|---|---|---|---|
| N a | Mean (SD) or % | N a | Mean (SD) or % | P valueb | Direction (+ or −) |
P Valuec | Direction (+ or −) |
P valuec | |
| PC status (% patients) | 146 | 22.6 | 183 | 18.6 | .368 | – | .062 | - | .928 |
| Sex (% females) | 146 | 34.9 | 183 | 42.6 | .156 | -d | <.001 | + | .665 |
| Age (years) | 146 | 30 (7.5) | 183 | 32.6 (7.9) | <.001 | − | .380 | − | <.001 |
| Education years (years) | 144 | 14 (2.6) | 183 | 14.1 (2.3) | .609 | + | .363 | − | <.001 |
| Handedness (% right-handedness) |
143 | 83.9 | 183 | 90.2 | .091 | + | .322 | + | .663 |
Note:
aNumber of participants with data in each variable.
bChi-square test or t-test.
cPoint-biserial correlations for PC status, sex and handedness; Spearman’s correlations for age and education years.
dWomen had smaller SA than men.