hypothetical在此如何翻译?
Results from a cost-effectiveness analysis in nontophaceous gout, involving a hypothetical patient cohort, suggest that the institution of allopurinol is cost effective in patients seen with two or more acute gout flares within a 1-year period.
一项涉及假设患者队列的非痛风石性痛风成本效益分析结果表明,对于 1 年内出现两次或两次以上急性痛风发作的患者,给予别嘌醇具有成本效益
为什么说是“假设“(hypothetical )?