Table 1 Pigmentation of eye, hair, and skin, physical and mental health, and number of children reported by the participants of study.

From: Skin fairness is a better predictor for impaired physical and mental health than hair redness

  The subjects responses
012345
Eye darkness380 (14.27%)567 (21.29%)518 (19.45%)491 (18.44%)439 (16.49%)268 (10.06%)
196 (13.56%)342 (23.67%)185 (12.8%)233 (16.12%)318 (22.01%)171 (11.83%)
Hair darkness36 (1.35%)317 (11.91%)769 (28.9%)775 (29.12%)645 (24.24%)119 (4.47%)
16 (1.11%)184 (12.73%)291 (20.14%)397 (27.47%)452 (31.28%)105 (7.27%)
Hair redness1456 (54.57%)662 (24.81%)275 (10.31%)196 (7.35%)66 (2.47%)13 (0.49%)
1020 (70.39%)256 (17.67%)77 (5.31%)64 (4.42%)27 (1.86%)5 (0.35%)
Skin darkness399 (14.97%)1029 (38.6%)732 (27.46%)445 (16.69%)58 (2.18%)3 (0.11%)
110 (7.61%)553 (38.24%)470 (32.5%)260 (17.98%)49 (3.39%)4 (0.28%)
Physical health18 (1.01%)69 (3.86%)263 (14.7%)521 (29.12%)648 (36.22%)270 (15.09%)
5 (0.52%)32 (3.36%)133 (13.96%)237 (24.87%)401 (42.08%)145 (15.22%)
Mental health43 (2.4%)130 (7.26%)287 (16.03%)488 (27.26%)563 (31.45%)279 (15.59%)
21 (2.21%)49 (5.15%)126 (13.25%)223 (23.45%)318 (33.44%)214 (22.5%)
Mental h. drugs1485 (87.51%)133 (7.84%)54 (3.18%)25 (1.47%)  
839 (91.79%)46 (5.03%)19 (2.08%)10 (1.09%)  
Other drugs985 (57.3%)410 (23.85%)178 (10.35%)84 (4.89%)62 (3.61%) 
589 (64.09%)158 (17.19%)88 (9.58%)38 (4.13%)46 (5.01%) 
Number disorders2156 (80.81%)306 (11.47%)106 (3.97%)100 (3.75%)  
1216 (83.92%)141 (9.73%)53 (3.66%)39 (2.69%)  
Children940 (49.47%)346 (18.21%)474 (24.95%)112 (5.89%)28 (1.47%) 
433 (44.78%)169 (17.48%)258 (26.68%)85 (8.79%)22 (2.28%) 
  1. The table shows the number and the percentage of female (♀) and male (♂) subjects providing particular response to the questions on eye darkness, hair darkness etc. (column 1). In the upper part of the table the population is stratified using the scale 0–5 (5 = the highest eye darkness, hair darkness etc.). In the lower part of the table the stratification was done according to the number of different drugs prescribed by a doctor taken in past month (separately for mental health disorders and for other disorders), the number of checked neuropsychiatric disorders in the provided list of 26 disorders, and the number of participant’s biological children. In this part of the table, the highest category, e.g. 4 (children), means 4 and more. For the next statistical analyses, the categories with less than 3% subjects were merged with adjacent categories.