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. 2023 Nov 11;16:3251–3266. doi: 10.2147/CCID.S435795

Table 3.

Effect of VISPO Topical Administration on Different Hair Parameters

VISPO (n=18) Placebo (n=19) p-value (VISPO vs Placebo)
Hair comb test score
 Baseline 20.28±7.32 18.94±9.93 0.650
 Week 8 17.83±5.59 21.28±8.32 0.007§**
 Week 16 15.78±6.41 22.94±8.69 0.008**
p-value (Baseline vs Week 8) 0.044* 0.091
p-value (Baseline vs Week 16) 0.029#* 0.018#*
Hair pull test score
 Baseline 8.53±0.44 8.47±0.40 0.693
 Week 8 7.33±0.64 8.56±0.34 <0.001§***
 Week 16 6.78±0.55 8.58±0.35 <0.001§***
p-value (Baseline vs Week 8) <0.001*** 0.437
p-value (Baseline vs Week 16) <0.001*** 0.362
Hair density (Hairs/cm2)
 Baseline 205.67±34.34 230.22±47.15 0.084
 Week 8 214.11±35.48 222.94±49.96 0.545
 Week 16 221.33±37.61 221.83±45.90 <0.001§***
p-value (Baseline vs Week 8) <0.001#*** 0.007#**
p-value (Baseline vs Week 16) 0.0016** 0.044*
Hair thickness (µm)
 Baseline 16.50±4.40 16.61±3.88 0.936
 Week 8 17.17±3.38 16.17±3.03 0.357
 Week 16 17.44±3.67 16.56±3.40 0.456
p-value (Baseline vs Week 8) 0.378# 0.606#
p-value (Baseline vs Week 16) 0.420# 0.945#
Anagen/Telogen ratio
 Baseline 3.10±0.95 3.25±0.89 0.631
 Week 8 2.96±0.81 2.97±0.76 0.936§
 Week 16 3.10±0.87 2.74±0.95 0.193§
p-value (Baseline vs Week 8) 0.323 0.202
p-value (Baseline vs Week 16) 0.886 0.049*

Notes: Values are mean±standard deviation (SD). #Paired t-test; Independent t-test; Wilcoxon signed-rank test; §Mann–Whitney U-test. *p<0.05, **p<0.01 and ***p<0.001.