highly significantP < 0.0001
There was a highly significant correlation of serum and saliva scores ( P < 0.0001) and the Spearman correlation coefficient of ρ = 0.602 indicated a moderate positive correlation [ 34 ].
There was a highly significant correlation of serum and saliva scores ( P < 0.0001) and the Spearman correlation coefficient of ρ = 0.602 indicated a moderate positive correlation [ 34 ].