Severity, interference, qualities, and correlates of severe pain: Descriptive cross-sectional study on pain experience of cancer patients in Sri Lanka.

OBJECTIVE: Pain is the most debilitating and subjective experience of cancer patients. This study examines the severity, interference, characteristics, and associations of severe pain in Sri Lankan cancer patients.

METHODS: A descriptive study was conducted in Sri Lanka on 384 patients at age 18 or older who had cancer pain for 3 months or more due to the initial lesion, secondaries, radiation, or chemotherapy. Patients with non-cancerous pain or brain metastases were excluded. Data was collected using a validated Sinhala version of the Short-Form Brief Pain Inventory and the Short-Form McGill Pain Questionnaire-2. Logistic regression was used to identify severe pain correlations.

RESULTS: The mean of the "worst pain" experience was 7.97, and 73.2% reported their "worst pain" as severe. The "normal works" (62.5%) and "sleep" (58.3%) were severely influenced by pain. "Aching pain," was the most reported pain quality. A statistically significant association was shown between severe pain and male gender (adjusted odds ratio (AOR) = 1.723), being in marriage (AOR = 1.947), absence of family commitments (AOR = 1.8), and pain of 3 months or more duration (AOR = 1.76).

CONCLUSION: The experiences of cancer pain vary, with the majority suffering from severe pain.