Marchetti D L, Lele S B, Priore R L, McPhee M E, Hreshchyshyn M M
Department of Gynecology/Obstetrics, State University of New York, Buffalo 14214.
Gynecol Oncol. 1993 Apr;49(1):86-91. doi: 10.1006/gyno.1993.1091.
This study retrospectively analyzes the treatment of advanced ovarian cancer (Stages III and IV) in elderly patients (> or = 65) compared to that in younger patients (< 65). The purpose of this study was to identify possible treatment bias toward the elderly and to statistically analyze the nature of these differences. Seventy patients were evaluated of which 29 were identified as elderly and 41 as young. All patients were treated with platinum-based chemotherapy. Chi 2, log rank, Kaplan-Meier, and Cox model analyses were performed for multiple variables including age, grade of tumor, adequacy of surgery, and dose intensity. The elderly significantly differed from the young in the following analyses: median length of hospitalization, 20 days vs 11 days (P < 0.001); optimum surgery, 79.3% vs 97.5% (P = 0.02); initial chemotherapeutic dose reduction, 15.4% vs 0% (P = 0.02); median survival compared to age, 19.2 months vs 36.7 months (P < 0.03). When survival analysis was performed comparing 17 elderly patients and 40 younger patients who had optimum surgery and optimum initial chemotherapy, the median survival remained essentially unchanged, 22.0 months vs 36.7 months. There were differences in treatment intensity between young and old, however, the indications generally were valid and when analyzed by the Kaplan-Meier and Cox model, these differences became insignificant. It was concluded that when elderly patients can undergo aggressive surgical and chemotherapeutic management, survival remained significantly decreased for aged compared to younger patients. Physician bias was not a major factor accounting for the poorer survival observed in elderly patients. Age was the most significant variable related to survival and could not be accounted for by differences in adequacy of surgery or dose intensity.
本研究回顾性分析了老年患者(≥65岁)与年轻患者(<65岁)晚期卵巢癌(III期和IV期)的治疗情况。本研究的目的是确定对老年患者可能存在的治疗偏见,并对这些差异的性质进行统计学分析。评估了70例患者,其中29例被确定为老年患者,41例为年轻患者。所有患者均接受铂类化疗。对包括年龄、肿瘤分级、手术充分性和剂量强度在内的多个变量进行了卡方检验、对数秩检验、Kaplan-Meier分析和Cox模型分析。在以下分析中,老年患者与年轻患者存在显著差异:中位住院时间,20天对11天(P<0.001);最佳手术,79.3%对97.5%(P=0.02);初始化疗剂量减少,15.4%对0%(P=0.02);与年龄相关的中位生存期,19.2个月对36.7个月(P<0.03)。当对17例接受了最佳手术和最佳初始化疗的老年患者与40例年轻患者进行生存分析时,中位生存期基本保持不变,分别为22.0个月和36.7个月。年轻患者和老年患者在治疗强度上存在差异,然而,这些指征通常是有效的,并且通过Kaplan-Meier分析和Cox模型分析时,这些差异变得不显著。得出的结论是,当老年患者能够接受积极的手术和化疗管理时,与年轻患者相比,老年患者的生存期仍然显著降低。医生偏见不是老年患者观察到的较差生存情况的主要因素。年龄是与生存最相关的显著变量,且不能通过手术充分性或剂量强度的差异来解释。