Table 16. Investigators’ Visual Evaluation using Photo Images in the PP Population

Item	Visit	Control group(n=29)	Treatment group(n=33)	U	p–valuea
		Mean Rank	Mean Rank
Do the symptoms of hair loss improve?	8 weeks	30.59	32.30	452.000	0.673
	16 weeks	27.48	35.03	362.000	0.053
	24 weeks	26.72	35.70	340.000	0.039*
Is the hair density increasing on the top of the head?	8 weeks	30.62	32.27	453.000	0.537
	16 weeks	31.00	31.94	464.000	0.349
	24 weeks	31.28	31.70	472.000	0.915
Is the hair density increasing on the forehead?	8 weeks	31.78	31.26	470.500	0.860
	16 weeks	28.16	34.44	381.500	0.068
	24 weeks	27.48	35.03	362.000	0.034*
Is the hair thicker?	8 weeks	31.55	31.45	477.000	0.974
	16 weeks	30.12	32.71	438.500	0.356
	24 weeks after use	26.38	36.00	330.000	0.003**

Mann-Whitney test
p<0.05,
p<0.01,
p<0.001