Table 2.
Adjusted Whole Hippocampus and Subfield Volume (mm3) Comparison between Football (n = 59) and Volleyball (n = 32) at Baseline
| Football mean in mm3, SD (95% CI) | Volleyball mean in mm3, SD (95% CI) | Adjusted difference in mm3 (CI) | T (p value) | R2 | d | |
|---|---|---|---|---|---|---|
| Total hippocampus | 11,704.19, 895.04 (11,472.58, 11,935.79) | 11,963.76, 869.25 (11,658.34, 12,269.19) | –259.58 (−642.89, 123.74) | –1.35 (0.182) | 0.27 | 0.29 |
| Dentate gyrus | 1873.20, 224.69 (1815.06, 1931.35) | 1960.37, 221.00 (1882.72, 2038.02) | –87.16 (−183.68, 9.35) | –1.79 (0.076) | 0.15 | 0.39 |
| CA1 | 2826.31, 295.80 (2749.77, 2902.86) | 2912.82, 286.88 (2812.02, 3013.62) | –86.51 (−212.49, 39.47) | –1.36 (0.176) | 0.16 | 0.30 |
| Subiculum | 1166.54, 110.01 (1138.08, 1195.01) | 1234.31, 124.68 (1190.50, 1278.12) | –67.77 (−120.20, −15.33) | –2.57 (0.012)a | 0.14 | 0.58 |
| Entorhinal-perirhinal | 5838.13, 505.90 (5707.22, 5969.04) | 5856.27, 583.93 (5651.09, 6061.44) | –18.14 (−262.39, 226.12) | –0.15 (0.883) | 0.22 | 0.03 |
p values for effect of sport, adjusting for age and total intracranial volume. Bolded p values are < = 0.05.
a
Meets multiple comparison correction across subfields by false discovery rate.
Bold highlights p < .05 uncorrected.
CA1, cornu ammonis area 1; SD, standard deviation; CI, confidence interval.