Figure 5

Comparison B/DB/LB - Y versus S - M/H and comparison B/DB/LB - Y versus S/M - H. Comparison between yellow against other colours with soft and other hardness categories. (a) Table shows mean differences for log(CFU) between categories B/DB/LB - Y (colour test) and categories S - M/H (hardness test). (b) WMD value for the difference is −4.74 (p < 0.001), favoring the hypothesis that the hardness test is more discriminant. Comparison between yellow against other colour with hard and other hardness categories. (c) Table shows mean differences for log(CFU) between categories B/DB/LB - Y (colour test) and categories S/M - H (hardness test). (d) WMD value for the difference is −4.45 (p < 0.001), favoring the hypothesis that the hardness test is more discriminant. TX = treatment group (colour test); CT = control group (hardness test); n = number of samples; m = mean; s = standard deviation.