extremely significantP < 0.001
The difference between groups 1 and 3 was extremely significant, and the average of the three groups was 48.16° smaller than that of group 1 ( P < 0.001).
The difference between groups 1 and 3 was extremely significant, and the average of the three groups was 48.16° smaller than that of group 1 ( P < 0.001).