Participant characteristic | Black African n = 12 | White n = 12 | Hair pluckability Mean (SD) | Test statistic (P value) |
---|---|---|---|---|
Ethnicity (number): | Â | Â | Â | Â |
   Black African | 12 | 0 | 39.9 (10.8) | 0.89 (0.372)1 |
   White Australian | 0 | 1 | 38.7 (11.0) |  |
   White British | 0 | 9 | 38.7 (11.0) |  |
   White German | 0 | 1 | 38.7 (11.0) |  |
   White Italian | 0 | 1 | 38.7 (11.0) |  |
Gender (number) | Â | Â | Â | Â |
   Male | 4 | 4 | 40.9 (11.2) | 1.58 (0.115)1 |
   Female | 8 | 8 | 38.5 (10.7) |  |
Age (Mean (SD)) | 35.3 (9.1)2 | 36.7 (9.1) | 36.0 (9.1) | 0.083 (0.208)3 |
Age groups | Â | Â | Â | Â |
   19–29 y | 4 | 2 | 41.6 (12.5) | 10.38 (<0.001)4 |
   30–40 y | 3 | 6 | 35.4 (9.5) |  |
   41–52 y | 4 | 4 | 41.7 (10.0) |  |
Age groups | Â | Â | Â | Â |
   19–36 y | 6 | 6 | 38.4 (11.6) | 1.39 (0.187)1 |
   >36 y | 5 | 6 | 40.2 (10.1) |  |
Hair color (number): | Â | Â | Â | Â |
   Black | 11 | 1 | 39.7 (10.9) | 0.157 (0.525)5 |
   Brown | 0 | 8 | 38.9 (10.9) |  |
   Blonde | 0 | 2 | 38.9 (10.9) |  |
   Grey | 1 | 0 | 38.9 (10.9) |  |
   Red | 0 | 1 | 38.9 (10.9) |  |
Hair length (number): | Â | Â | Â | Â |
   Shorter than ear length | 8 | 8 | 37.5 (32.5, 45.0)6 | 1.09 (0.579)5 |
   Between chin and shoulder | 3 | 2 | 37.8 (29.9, 47.5)6 |  |
   Longer than shoulder | 1 | 2 | 42.6 (29.7, 50.1)6 |  |
Hair currently permed | Â | Â | Â | Â |
   Yes | 7 | 0 | 40.2 (10.2) | 0.78 (0.436)1 |
   No | 4 | 12 | 38.9 (11.2) |  |
Hair currently dyed | Â | Â | Â | Â |
   Yes | 2 | 7 | 41.4 (10.5) | 1.90 (0.058)1 |
   No | 10 | 4 | 38.4 (11.0) |  |
Currently have hair products on hair | Â | Â | Â | Â |
   Yes | 7 | 6 | 39.5 (10.9) | 0.25 (0.804)1 |
   No | 4 | 6 | 39.1 (11.0) |  |
Broken hair | Â | Â | Â | Â |
   ≥1 | 3 | 1 | 41.4 (10.7) | -1.36 (0.177)1 |
   None | 9 | 11 | 38.9 (10.9) |  |