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Descriptive statistics.
| Control group (N = 24) | Experimental group (N = 27) | Overall (N = 51) | |
|---|---|---|---|
| Age (months) | |||
| Mean (SD) | 66.8 (5.03) | 65.3 (5.87) | 66.0 (5.49) |
| Median [Min, Max] | 68.0 [54.0, 75.0] | 66.0 [55.0, 76.0] | 67.0 [54.0, 76.0] |
| Missing | 2 | 2 | 4 |
| Fluid intelligence | |||
| Mean (SD) | 10.6 (5.55) | 10.3 (5.72) | 10.4 (5.58) |
| Median [Min, Max] | 11.0 [0, 20] | 9.0 [2, 21] | 11.0 [0, 21] |
| Gender (N) | |||
| Boys | 15 | 18 | 33 |
| Girls | 9 | 9 | 18 |
Age (in months), baseline fluid intelligence scores, and gender for each group.
