Recurrent pain, illness intrusiveness, and quality of life in end-stage renal disease.

Repeated episodes of headache and muscle cramp were hypothesized to contribute to increased patient perceptions of illness intrusiveness and to compromised quality of life. Standard measures of pain, illness intrusiveness, and quality of life were obtained on 2 occasions, each 6 weeks apart, from 100 end-stage renal disease patients. The impact of recurrent muscle cramps on perceptions of illness intrusiveness was conditional upon the occurrence of headache symptoms.