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. 2023 Nov 15;13:19993. doi: 10.1038/s41598-023-46513-1

Table 2.

Demographics (N = 109).

Mean (sd) Group comparison
PP MC Statistic p
Age 69.28 (3.28) 69.51 (3.96) t = 0.33 0.74
Males/females 25/31 24/29 χ2 = 0.005 0.95
Education 3.91 (1.38) 3.85 (1.41) χ2 = 2.77 0.74
COGTEL score 31.44 (6.87) 32.46 (7.39) t = 0.74 0.46
Gold-MSI score 49.68 (12.33) 49.77 (11.62) t = 0.41 0.97

Group comparisons did not reveal any significant differences between both groups in age, gender, education level and COGTEL score. Group differences were calculated using a two-sample independent t test for age and COGTEL score, and a chi-squared test for gender and education. Education is a categorical variable with 6 levels (1 = primary school, 2 = middle school, 3 = high school, 4 = Bachelor’s degree, 5 = Master’s degree, 6 = doctorate degree).

COGTEL cognitive telephone screening instrument, Gold-MSI goldsmiths musical sophistication index, PP piano practice group, MC music listening/musical culture group, sd standard deviation.