Table 2.
Functional connectivity study population & paracingulate sulcal status
| Total | Left PCS present | Left PCS absent | Left PCS contrasts | Right PCS present | Right PCS absent | Right PCS contrasts | |
|---|---|---|---|---|---|---|---|
| n | 129 | 92 | 37 | 74 | 55 | ||
| Age, mean (SD), years | 52.46 (4.96) | 52.59 (4.95) | 52.14 (5.05) | F = 0.22, P = 0.64 | 51.82 (4.79) | 53.32 (5.11) | F = 2.95, P = 0.08 |
| Sex | X2 = 3.61, P = 0.06 | X2 = 1.00, P = 0.32 | |||||
| Female | 72 | 46 | 26 | 38 | 34 | ||
| Male | 57 | 46 | 11 | 36 | 21 | ||
| Handednessa | X2 = 0.83, P = 0.66 | X2 = 2.11, P = 0.35 | |||||
| Right | 116 | 83 | 33 | 67 | 49 | ||
| Left | 9 | 6 | 3 | 4 | 5 | ||
| Ambidextrous | 2 | 2 | 3 | 2 | 0 | ||
| Unknown | 2 | 1 | 1 | 1 | 1 |
Demographic data for the functional connectivity analyses
Standard deviation (SD). a Handedness data available for 127/129 individuals. Hemispheric Paracingulate Sulcal Status; present = PCS length ≥ 20 mm. ANOVA and Chi-Squared tests were performed to evaluate differences in continuous and nominal data, respectively