More than one-third of Iowa workers injured on the job said they had concerns they would be fired due to their injuries, according to a new study released this week by the Workers’ Compensation Research Institute. The study, Predictors of Worker Outcomes in Iowa, found trust in the workplace to be one of the more important predictors that has not been examined before. To describe the level of trust or mistrust in the work relationship, the study asked workers if they were concerned about being fired as a result of an injury. Thirty-nine percent reported that they were somewhat or very concerned that they would be fired or laid off after they were injured. Sixty percent reported no such concern. The study also identified workers with specific medical conditions that existed at the time of the injury; hypertension was the most common co-occurring condition reported, at 24 percent. The study is based on telephone interviews with 412 injured workers in Iowa who had received workers’ compensation benefits in 2011 and had lost more than seven days from work.