extremely significantP ≤ 0.01
Significant difference existed when P < 0.05 and extremely significant difference existed when P ≤ 0.01, while insignificant difference existed when P ≥ 0.05.
Significant difference existed when P < 0.05 and extremely significant difference existed when P ≤ 0.01, while insignificant difference existed when P ≥ 0.05.