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Table 3 Subject self-assessment of efficacy (last observation carried forward)

From: Efficacy and Safety of a Low-level Laser Device in the Treatment of Male and Female Pattern Hair Loss: A Multicenter, Randomized, Sham Device-controlled, Double-blind Study

  Trial #1. Female 9-beam Trial #2. Female 12-beam Trials #3 and #4. Male 7-, 9- and 12-beam (pooled)
Overall improvement of hair loss condition Thickness and fullness of hair Overall improvement of hair loss condition Thickness and fullness of hair Overall improvement of hair loss condition Thickness and fullness of hair
Lasercomb (n = 43) Sham (n = 22) Lasercomb (n = 43) Sham (n = 22) Lasercomb (n = 39) Sham (n = 18) Lasercomb (n = 39) Sham (n = 18) Lasercomb (n = 67) Sham (n = 36) Lasercomb (n = 67) Sham (n = 36)
Week 16 (LOCF), n (%)
 Improved/ minimally improved 36 (83.7) 12 (54.5) 28 (65.1) 8 (36.4) 25 (64.1) 7 (38.9) 23 (59.0) 8 (44.4) 39 (58.2) 12 (33.3) 37 (55.2) 15 (41.7)
 No change 7 (16.3) 9 (40.9) 15 (34.9) 14 (63.6) 11 (28.2) 9 (50.0) 15 (38.5) 10 (55.6) 27 (40.3) 23 (63.9) 28 (41.8) 19 (52.8)
 Worse/ minimally worse 0 (0) 1 (4.5) 0 (0) 0 (0) 3 (7.7) 2 (11.1) 1 (2.6) 0 (0) 1 (1.5) 1 (2.8) 2 (3.0) 2 (5.6)
  p = 0.0149* p = 0.0982 p = 0.0546 p = 0.2667 p = 0.0706 p = 0.2484
Week 26 (LOCF), n (%)
 Improved/ minimally improved 36 (83.7) 11 (50.0) 31 (72.1) 10 (45.5) 26 (66.7) 11 (61.1) 24 (61.5) 9 (50.0) 40 (59.7) 17 (47.2) 38 (56.7) 13 (36.1)
 No change 6 (14.0) 11 (50.0) 12 (27.9) 12 (54.5) 11 (28.2) 6 (33.3) 14 (35.9) 7 (38.9) 25 (37.3) 16 (44.4) 28 (41.8) 21 (58.3)
 Worse/ minimally worse 1 (2.3) 0 (0) 0 (0) 0 (0) 2 (5.1) 1 (5.6) 1 (2.6) 2 (11.1) 2 (3.0) 3 (8.3) 1 (1.5) 2 (5.6)
  p = 0.0321* p = 0.0345* p = 0.1713 p = 0.1000 p = 0.0717 p = 0.0114*
  1. * Statistically significant
  2. LOCF last observation carried forward