Pain prevalence among residents living in nursing homes and its association with quality of life and well-being.

The study shows that it is difficult to estimate pain in residents living at nursing homes and that it continues to be a challenge to solve. Self-rated pain should be used primarily to assess pain, and a multi-component observation scale for pain should be used when residents are cognitively impaired. Both self-rated pain and multi-component observation also support the well-known link between pain and quality of life. Single-item proxy assessments should only be used in exceptional cases.