The researchers said one of the most surprising findings was how successful low-wage employers were in pressuring workers not to file for workers’ compensation. Only 8 percent of those who suffered serious injuries on the job filed for compensation to pay for medical care and missed days at work stemming from those injuries…

The study found that women were far more likely to suffer minimum wage violations than men, with the highest prevalence among women who were illegal immigrants. Among American-born workers, African-Americans had a violation rate nearly triple that for whites…

The report found that 57 percent of workers sampled had not received mandatory pay documents the previous week, which are intended to help make sure pay is legal and accurate. Of workers who receive tips, 12 percent said their employer had stolen some of the tips."