Table 1.
Structural 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 | 125 | 88 | 37 | 71 | 54 | ||
| Age, mean (SD), years | 52.19 (5.12) | 52.37 (5.06) | 51.76 (5.33) | F = 0.36, P = 0.55 | 51.63 (4.95) | 52.92 (5.30) | F = 1.94, P = 0.17 |
| Sex | X2 = 3.15, P = 0.08 | X2 = 1.95, P = 0.16 | |||||
| Female | 71 | 45 | 26 | 36 | 36 | ||
| Male | 54 | 43 | 11 | 35 | 19 | ||
| Handednessa | X2 = 1.09, P = 0.58 | X2 = 1.67, P = 0.43 | |||||
| Right | 113 | 80 | 33 | 64 | 49 | ||
| Left | 8 | 5 | 3 | 4 | 4 | ||
| Ambidextrous | 2 | 2 | 0 | 2 | 0 | ||
| Unknown | 2 | 1 | 1 | 1 | 1 |
Demographic data for the structural connectivity analyses
Standard deviation (SD). a Handedness data available for 123/125 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