Fig  1 Auto body shop workers: associations between average isocy

Fig. 1 Auto body shop workers: associations between average isocyanate exposure and skin symptoms, shown in smoothed plots, stratified by atopy. Data rug indicates the distribution of observations by exposure level. a Itchy or dry skin in atopic subjects (linear: NS; spline: NS), b work-related itchy skin in atopic subjects (linear:

selleck chemical NS; spline: NS), c itchy or dry skin in non-atopic subjects (linear: NS; spline: df = 1.05, p < 0.05), d work-related itchy skin in non-atopic subjects (linear: NS; spline: df = 3.71, p < 0.05) Fig. 2 Bakery workers: Associations between average wheat exposure and skin symptoms, shown in smoothed plots, stratified by atopy. Data rug indicates the distribution of observations by exposure level. a Itchy or dry skin in atopic subjects (linear: NS; spline: NS), b selleck compound work-related itchy skin in atopic subjects (linear: NS; spline: NS), c itchy or dry skin in non-atopic subjects (linear: NS; spline: NS), d work-related itchy skin in non-atopic subjects (linear: NS; spline: NS), atopic subjects

(linear: NS; spline: NS) In auto body shop workers (Table 2), statistically significant exposure–response relationships were observed for itchy or dry skin (PR 1.56, 95 % CI 1.2–2.0) and work-related itchy skin (PR 1.97, 95 % CI 1.2–3.3); a similar trend was observed in the bakery workers for work-related skin symptoms but this did not reach significance (Table 2). Table 2 Results of generalized see more linear models describing the simple relationship between exposure, symptoms, atopy, and specific IgE Independent variable Dependant variable PR (95 % CI) Auto body repair workers (n = 473) Average isocyanate exposure (μg-NCO*m−3) Itchy or dry skin 1.56 (1.2–2.0) WR itchy skin 1.97 (1.2–3.3) Atopy 0.83 (0.7–1.0) HDI-specific IgE 10.0 (1.4–73) Atopy Itchy or dry skin 1.26 (1.0–1.7) WR itchy skin 0.80 (0.4–1.5) HDI-specific IgE

Itchy or dry skin 1.86 (1.1–3.2) WR itchy skin 1.03 (0.2–6.8) Bakery workers (n = 723) Average Carnitine palmitoyltransferase II wheat exposure (μg*m−3) Itchy or dry skin 0.96 (0.8–1.1) WR itchy skin 1.16 (0.9–1.5) Atopy 0.91 (0.8–1.1) Wheat-specific IgE 1.12 (0.8–1.5) Atopy Itchy or dry skin 1.45 (1.2–1.8) WR itchy skin 1.67 (1.5–3.1) Wheat-specific IgE Itchy or dry skin 1.22 (0.9–1.6) WR itchy skin 2.17 (1.5–3.1) Each reported prevalence ratio (PR) was estimated from a separate model. Models adjusted for age and sex. (WR work-related) In auto body shop workers (Table 2), exposure was significantly related to specific HDI sensitization (PR 10.0, 95 % CI 1.4–73), with wide confidence limits likely due to the small number of sensitized subjects. HDI-specific sensitization was associated with itchy or dry skin (PR 1.86, 95 % CI 1.1–3.2) but not work-related itchy skin. Atopy predicted itchy or dry skin in auto body shop workers (PR 1.26, 95 % CI 1.0–1.7) but not work-related itchy skin.

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