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Table 4 Work characteristics of study subjects by dermatologic symptoms

From: The Effect of Work Characteristics on Dermatologic Symptoms in Hairdressers

Variable* Dermatologic Symptoms(+) Dermatologic Symptoms (−) p value
n (%) n (%)
Business type
  Franchise hair salons 98 (22.6) 335 (77.4) 0.035
  Private hair salon 103 (17.3) 491 (82.7)  
Salon size (number of employees)
  1 29 (12.7) 199 (87.3) 0.001
  2 - 4 42 (16.9) 206 (83.1)  
  5 - 9 33 (22.6) 113 (77.4)  
10 88 (25.4) 259 (74.6)  
Training status
  Master 52 (13.4) 336 (86.6) < 0.001
  Designer 76 (20.0) 304 (80.0)  
  Staff 84 (29.4) 202 (70.6)  
Main task
  Cutting 105 (16.9) 515 (83.1) < 0.001
  Permanent wave 29 (16.5) 147 (83.5)  
  Dyeing/Tinting 11 (30.6) 25 (69.4)  
  Washing 65 (32.5) 135 (67.5)  
  Drying 2 (9.1) 20 (90.9)  
Work tenure (years)§||
  < 3 31 (25.6) 90 (74.4) 0.011
  < 10 69 (20.5) 267 (79.5)  
10 59 (14.6) 345 (85.4)  
Hours worked per week
  > 52 44 (18.8) 190 (81.2) 0.508
52 142 (20.8) 540 (79.2)  
Exposure to hairdressing chemicals
  Not exposed 172 (21.1) 643 (78.9) 0.315
  Exposed 36 (17.9) 165 (82.1)  
Personal protective equipment used
  No 104 (19.6) 427 (80.4) 0.588
  Yes 101 (21.0) 381 (79.1)  
Types of protective equipment used
  Mask 108 (21.6) 393 (78.4) 0.460
  Gloves 89 (19.2) 374 (80.8)  
  Other || 7 (15.2) 39 (84.8)  
  1. *The total of each variable is not always 1,054 due to missing values.
  2. Characteristic dermatologic symptoms (itching, redness, swelling, cracking, blister formations) lasting for longer than 3 weeks.
  3. P-value by chi-squared test, p < 0.05.
  4. §Work tenure in the same profession.
  5. ||Arm sleeves, apron, etc.