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. 2023 Jan 11;58(2):158–170. doi: 10.1007/s00535-022-01938-9

Table 2.

Values and normality of each variable in overall and IBS and non-IBS groups, and comparison of the IBS and non-IBS groups

Overall IBS Non-IBS
n Mean SD n Mean SD n Mean SD t test p value Shapiro–Wilk
Age 703 19.27 2.86 184 19.67 3.54 519 19.12 2.56 0.053  < 0.05
IBS-SIa 703 123.42 92.66 184 202.26 79.30 519 95.47 80.16  < 0.001 0.783
K6b 703 4.84 4.68 184 7.55 5.17 519 3.87 4.09  < 0.001  < 0.05
PSSc 703 28.68 7.00 184 31.27 7.04 519 27.76 6.75  < 0.001  < 0.05
MAASd 703 61.74 12.20 184 57.47 11.39 519 63.26 12.13  < 0.001 0.092
Pre-school exercise days 703 28.09 95.25 184 29.52 86.52 519 27.58 98.24 0.812  < 0.05
Pre-school athletic results 703 0.24 0.60 184 0.24 0.57 519 0.24 0.61 0.914  < 0.05
Pre-school exercise enthusiasm 703 0.63 1.41 184 0.65 1.45 519 0.63 1.39 0.89  < 0.05
Elementary school exercise days 703 297.51 399.25 184 288.59 400.24 519 300.67 399.24 0.725  < 0.05
Elementary school athletic results 703 1.32 1.31 184 1.33 1.37 519 1.32 1.29 0.928  < 0.05
Elementary school exercise enthusiasm 703 2.48 2.05 184 2.41 2.04 519 2.50 2.05 0.624  < 0.05
Middle school exercise days 703 524.62 342.24 184 520.70 346.83 519 526.01 340.93 0.856  < 0.05
Middle school athletics results 703 2.07 1.34 184 2.03 1.40 519 2.09 1.32 0.626  < 0.05
Middle school exercise enthusiasm 703 3.30 1.94 184 3.11 1.94 519 3.37 1.94 0.122  < 0.05
High school exercise days 703 336.86 361.47 184 308.26 357.55 519 347.00 362.66 0.212  < 0.05
High school athletics results 703 1.58 1.63 184 1.43 1.67 519 1.64 1.62 0.133  < 0.05
High school exercise enthusiasm 703 2.32 2.23 184 1.99 2.15 519 2.44 2.26 0.017  < 0.05
Current exercise days 703 10.40 55.07 184 14.39 73.01 519 8.99 47.11 0.35  < 0.05
Current exercise athletics results 703 0.12 0.45 184 0.10 0.35 519 0.13 0.47 0.473  < 0.05
Current exercise enthusiasm 703 0.33 1.09 184 0.29 0.96 519 0.34 1.14 0.559  < 0.05
TEDe 703 1197.43 870.82 184 1161.46 885.05 519 1210.19 866.22 0.515  < 0.05
IPAQf 703 272.29 335.20 184 291.04 365.77 519 265.64 323.78 0.378  < 0.05

The values of each variable for the overall, IBS, and non-IBS groups in this study, as well as the Shapilo–Wilk test normality for the overall and Student’s t test results for the IBS and non-IBS groups

aIBS-SI = IBS Severity Index, IBS-SSS

bK6 = Kessler 6 Scale

cPSS = Perceived Stress Scale

dMAAS = Mindful Attention Awareness Scale

eTED = total exercise day

fIPAQ = International Physical Activity Questionnaire