The July effect and cardiac surgery: the effect of the beginning of the academic cycle on outcomes
The July effect and cardiac surgery: the effect of the beginning of the academic cycle on outcomes
复制标题
DOI：
10.1016/j.amjsurg.2008.07.005
复制
发表时间：
2008-11-01
影响因子：
3
通讯作者：
Bakaeen, FaisaL G.
中科院分区：
文献类型：
--
作者：
Dhaliwal, Arnandeep S.;Chu, Danny;Bakaeen, FaisaL G.
背景：学年时间对心脏手术结果的影响尚不清楚。方法：利用前瞻性收集的数据，我们确定了 1997 年 10 月至 2007 年 4 月期间在我们机构进行的所有（n = 1,673）心脏外科手术。比较了学年两个时期的发病率和死亡率，一个是学年早期（7 月 1 日至 8 月 31 日，n = 242），一个是学年晚些时候（9 月 1 日至 6 月 6 月）。 30，n = 1,431）。使用逐步逻辑回归模型构建预测模型。 结果：早期（12.8％）和后期（15.4％）之间的发病率没有显着差异（比值比[OR]，0.83；95％置信区间[CI]，0.54-1.28；P = 0.3）。此外，早期 (1.2%) 和后期 (3.5%) 的手术死亡率没有显着差异（OR，0.28；95% CI，0.07-1.19；P = 0.06）。结论：学年的早期和后期与相似的风险调整结果相关。需要进一步的研究来确定我们的研究结果是否适用于其他学术心脏中心。由爱思唯尔公司出版
BACKGROUND: The effect of the time of the academic year on cardiac surgical outcomes is unknown.METHODS: Using prospectively collected data, we identified all (n = 1,673) cardiac surgical procedures performed at our institution between October 1997 and April 2007. Morbidity and mortality rates were compared between 2 periods of the academic year, one early (July I-August 31, n = 242) and one later in the year (September 1-June 30, n = 1,431). A prediction model was constructed by using stepwise logistic regression modeling.RESULTS: Morbidity rates did not differ significantly between the early (12.8%) and later periods (15.4%) (odds ratio [OR], 0.83; 95% confidence interval [CI], 0.54-1.28; P = 0.3). Additionally, there was no significant difference in operative mortality between the early (1.2%) and later periods (3.5%) (OR, 0.28; 95% CI, 0.07-1.19; P = 0.06).CONCLUSIONS: The early and later parts of the academic year were associated with similar risk-adjusted outcomes. Further studies are needed to determine whether our findings are applicable to other academic cardiac centers. Published by Elsevier Inc.