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.
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Question: Question: Are perioperative complications after hemiarthroplasty and total shoulder arthroplasty equivalent?
Answer: Multivariate analysis of patients undergoing TSA or HA in the NSQIP database suggests that patient factors-not the procedure being performed-are significant predictors of major complications. Controlling for patient comorbidities, we found no increased risk of perioperative major complications in patients undergoing TSA compared with HA.

Answer: yes


Question: Question: Has survival after recurrent esophageal carcinoma improved over the past 18 years?
Answer: Survival after recurrent EC in patients who undergo FU without routine imaging after esophagectomy is approximately 3 months and has not improved over the past 18 years.

Answer: no


Question: Question: Is response to citalopram associated with SLC6A4 genotype in African-Americans and Caucasians with major depression?
Answer: The results are consistent with a previous finding and in accord with most of the results obtained in Caucasian subjects that SLC6A4 genotype is not related, at least by itself, to a response to treatment in either ethnic group to any clinically significant degree.

Answer:
no