Frongillo E A, Williamson D F, Roe D A, Scholes J E
Am J Public Health. 1987 Sep;77(9):1176-9. doi: 10.2105/ajph.77.9.1176.
Data from 2,002 elderly receiving home-delivered meals in 23 counties of New York State in 1984-85 were analyzed using a baseline survey and a six-month follow-up survey. Survival analysis estimated that 37.4 per cent of the clients left the program by the follow-up. The initial drop-out rate was estimated to be 14.2 per cent per month; by six months the rate fell to 3.3 per cent. Whites left the program at a rate 2.6 times (95% CI = 1.9, 3.8) that of minorities. Recent discharge from hospital was associated with the highest relative probability of program discontinuance (2.7, 95% CI = 2.2, 3.4), followed by having cancer (2.1, 95% CI = 1.6, 2.8), and having a non-hip fracture (2.0, 95% CI = 1.3, 2.9). Many of those with cancer died, while those recently discharged and those with non-hip fractures were more likely to leave the program because they were again able to cook for themselves.
1984年至1985年期间，对纽约州23个县2002名接受上门送餐服务的老年人的数据进行了分析，采用了基线调查和为期六个月的随访调查。生存分析估计，到随访时，37.4%的客户退出了该项目。最初的退出率估计为每月14.2%；到六个月时，该比率降至3.3%。白人退出该项目的比率是少数族裔的2.6倍（95%置信区间 = 1.9, 3.8）。近期出院与项目终止的相对概率最高相关（2.7, 95%置信区间 = 2.2, 3.4），其次是患有癌症（2.1, 95%置信区间 = 1.6, 2.8），以及发生非髋部骨折（2.0, 95%置信区间 = 1.3, 2.9）。许多患有癌症的人去世了，而近期出院的人和患有非髋部骨折的人更有可能退出该项目，因为他们又能够自己做饭了。
