Is it true that people working in construction industry are at a higher risk for kidney diseases?

Not likely so...: Due to the nature of their work, dehydration may occur more often in these folks in summer months, but often not the cause of long-term kidney disease. Maybe more accident/trauma? They are more physically active, thus less obesity, blood pressure, cholesterol, diabetes problems, thus actually may have lower incidence of kidney disease comparing to less active/desk workers. Consult doc. Good luck.