Lomanto B, Ziacchi V, Rossi A, Martinetti C, Scaroni G
G Ital Cardiol. 1977;7(1):14-23.
A statistical study was done on two groups of patients. The first group included 128 subjects of less than 65 years of age. The second group comprised 75 subjects aged 65 years or older. The purpose of the study was to identify the most relevant clinical aspects of myocardial infarction in older aged patients. The following variables were taken into consideration: sexual distribution, predisposing factors, causative factors, initial symptoms, site of infarction, physical and instrumental indications, cardiac and extracardiac complications, immobilization time, recovery time, residual aspects at patient discharge, mortality and tyme and type of death. The analysis was performed using both non parametric X2 test and correlating some variables with age independently of the subdivision of cases in groups, according to the method of multiple step-wise and simple regression. In the older age group the most significant statistical data was: the major incidence of infarcts was in women; the prevalence of predisposing factors such as hypertension and diabetes; the most frequent presentation of initial atypical symptoms; the most elevated incidence of hemodynamic complications and the highest mortality.
对两组患者进行了一项统计研究。第一组包括128名年龄小于65岁的受试者。第二组由75名年龄在65岁及以上的受试者组成。该研究的目的是确定老年患者心肌梗死最相关的临床方面。考虑了以下变量：性别分布、易感因素、致病因素、初始症状、梗死部位、体格检查和器械检查指标、心脏和心外并发症、固定时间、恢复时间、患者出院时的残留情况、死亡率以及死亡时间和类型。根据多步逐步回归和简单回归方法，使用非参数X2检验并将一些变量与年龄相关联进行分析，而不考虑病例在组中的细分情况。在老年组中，最显著的统计数据是：梗死主要发生在女性；高血压和糖尿病等易感因素的患病率；初始非典型症状的最常见表现；血流动力学并发症的发生率最高以及死亡率最高。
