Codes and Frequencies
For sample persons under age 18, OPJOINTEV reports if the person has ever had an operation for repair and plastic operations on joint structures. This includes operations on the ankle, knee, shoulder, elbow, wrist, hip, vertebrae, fingers, and toes that are not otherwise specified elsewhere and where tissue (i.e., skin or bone) is not apparent.
- 1981: Sample persons under age 18.
- 1981 : SAMPWEIGHT