Table 5.

Risk of subjective physical symptoms according to increasing days of clean-up work and degree of skin contamination by crude oil among 288 residents participating in clean-up of the Hebei Spirit oil spill, Taean, Korea, 2007-2008

OR: odds ratio, CI: confidence interval.

OR estimated using the multiple regression model adjusted for age, gender, educational level, history of asthma diagnosed, nearby pollution source, health belief regarding oil spill.

p trend calculated using the continuous scale of the variable (days of clean-up work) or ordinal scale of the category of the variable (degree of skin contamination) in the corresponding model.

^*OR could not be estimated because everyone had symptom.