instruction:
Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.
question:
Question: Is a high body mass index in esophageal cancer patients associated with adverse outcomes following esophagectomy?
Answer: A high BMI is not associated with increased overall morbidity following esophagectomy; moreover, it is associated with decreased incidence of chylothorax. The better overall survival in patients with high BMI compared with those with low BMI might be due to a relatively low pathological stage. A high BMI should therefore not be a relative contraindication for esophagectomy.
answer:
no


question:
Question: Does nonoperative immediate weightbearing of minimally displaced lateral compression sacral fractures result in displacement?
Answer: : Immediate weightbearing, tempered by patient comfort, is a safe and acceptable treatment for minimally displaced LC sacral fractures and results in union with minimal additional displacement.
answer:
no


question:
Question: Is exercise adherence to pelvic floor muscle strengthening a significant predictor of symptom reduction for women with urinary incontinence?
Answer: The effectiveness of the 4-month PFM strengthening program was influenced by the severity of symptoms and the improvement score of PFM strength instead of exercise adherence. Women who had more significant symptoms of leakage (higher score on the Severity Index at baseline) and who had more improvement of PFM strength showed more improvement of symptoms after PFM strengthening.
answer:

no