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. 2014 Oct 9;6:227. doi: 10.3389/fnagi.2014.00227

Table 1.

Means (SDs) and inferential statistics for demographic data and characteristics of musical practice (trend/significance p-values: $p ≤ 0.1).

Middle-aged controls (n = 14) Older controls (n = 20) Middle-aged musicians (n = 19) Older musicians (n = 15) F/χ2 p
ANOVAs/χ2
Sex ratio (M/F) 5/9 7/13 10/9 8/7 2.15 0.54
Education (years) 13.6 (3.5) 13 (2.5) 14.6 (2.1) 14 (2.5) 1.3 0.28
Occupation 2.6 (0.7) 3.1 (1) 3.2 (0.4) 3 (0.5) 2.2 0.1
Middle-aged controls Older controls Middle-aged musicians Older musicians t/χ2 P
TWO-SAMPLE t-TESTS/χ2
Sex ratio (M/F; collapsed across age) 12/22 18/16 2.15 0.14
Education (collapsed across age) 13.2 (2.9) 14.3 (2.3) 1.76 0.08$
Occupation (collapsed across age) 2.9 (0.9) 3.1 (0.4) 1.26 0.21
Age (middle-aged) 38.9 (12.9) 40.7 (9.7) −0.48 0.25
Age (older) 67 (4.4) 67.1 (5.2) −0.09 0.93
Frequency of training 15.3 (12.6) 9.2 (6.6) 1.71 0.1$
Age at onset of training 8.4 (3.7) 11.2 (4.5) −1.84 0.07$