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. 2018 Feb 14;15(2):340. doi: 10.3390/ijerph15020340

Table 3.

Mean comparisons of Frequent Mental Distress by region.

Region N (Counties) Mean SD
Southwest 40 9.5 a 1.1
West 35 9.8 a 1.2
Northeast 34 10.5 a,b 1.2
Midwest 61 10.6 b,c 1.2
Southeast 106 11.7 d 1.4

ANOVA F = 26.15, df = 4271, p < 0.00001. a,b,c,d Mean values with different superscripts are statistically significant different at p < 0.01 (Scheffe Test).