Table 1

Occupational status and characteristics of Danish hairdressers graduating from 1985 to 2007

VariableCurrent hairdressers
% (ncases/ntotal) 		Ex-hairdressers
% (ncases/ntotal) 		Total
% (ncases/ntotal) 		Ex-hairdressers vs current hairdressers
(model I) *adjusted HR (95% CI)		Ex-hairdressers vs current hairdressers
(model II) *adjusted HR
(95% CI)
Hairdressers graduating from 1985 to 200742.7 (1117/2614)57.3 (1497/2614)100.0 (2614/2614)Not includedNot included
Female95.1 (1062/1117)97.3 (1456/1497)96.3 (2518/2614)1.36 (0.96 to 1.92), p=0.821.33 (0.94 to 1.89), p=0.10
Age
 31–4011.3 (126/1117)10.3 (154/1497)10.7 (280/2614)1.0 (reference)1.0 (reference)
 41–5050.6 (565/1117)46.0 (689/1497)48.0 (1254/2614)1.05 (0.88 to 1.26), p=0.561.05 (0.88 to 1.25), p=0.60
 51–6037.4 (418/1117)42.6 (637/1497)40.4 (1055/2614) 1.29 (1.08 to 1.55), p=0.006 1.32 (1.10 to 1.59), p=0.003
 >600.7 (8/1117)1.1 (17/1497)1.0 (25/2614)1.61 (0.87 to 2.97), p=0.131.73 (0.94 to 3.21) p=0.08
 A history of atopic dermatitis4.5 (50/1113)7.0 (105/1456)6.0 (155/2569) 1.26 (1.01 to 1.56), p=0.04 1.15 (0.93 to 1.44), p=0.20
Occupational hand eczema
 Never63.9 (709/1110)56.0 (853/1492)59.3 (1544/2602)Not included1.0 (reference)
 Once8.5 (94/1110)5.4 (81/1492)6.7 (175/2602) 0.78 (0.62 to 1.0), p=0.05
 Several times21.8 (242/1110)26.2 (391/1492)24.3 (633/2602) 1.20 (1.05 to 1.36), p=0.007
 Almost all the time5.9 (65/1110)12.4 (185/1492)9.6 (250/2602) 1.90 (1.59 to 2.26), p<0.001
 Lifetime prevalence36.5 (408/1117)44.1 (660/1495)40.9 (1068/2612) 1.22 (1.09 to 1.36), p=0.001 Not included

  • Bold font indicates p<0.05.

  • *The adjusted HR was estimated by Cox regression. Two models are included in the table. The models differ on the variable of OHE. Model I contain the variable of OHE (yes/no). Model II contains OHE on an ordinal scale (never/once/several times/almost all the time).

  • OHE, occupational hand eczema.