extremely significantP < 0.0001
highly significantP < 0.01
Differences between two groups were considered statistically significant when the P -value was < 0.05, highly significant at P < 0.01, and extremely significant at P < 0.0001.
Differences between two groups were considered statistically significant when the P -value was < 0.05, highly significant at P < 0.01, and extremely significant at P < 0.0001.