Creatinine levels relate to both muscle mass and to kidney function. As you age, your muscle mass decreases but your kidneys tend to function less effectively. The net result is not much change in creatinine levels in the blood as you get older.
As a result, California employers are required by law to have workers' compensation insurance, even if they have only one employee. And, if your employees get hurt or sick because of work, you are required to pay for workers' compensation benefits.
California employers with five or more employees are covered by provisions of the Fair Employment and Housing Act, which allows pregnant women to take time off work for disability associated with their pregnancy, childbirth and related medical conditions.