DiMaria-Ghalili Rose Ann
West Virginia University, School of Nursing, Charleston, WV 25304, USA.
Biol Res Nurs. 2004 Jul;6(1):24-36. doi: 10.1177/1099800404264538.
The purpose of this study was to describe the extent to which late postoperative health outcomes vary as a function of change in body mass index (BMI) in per-sons > or = 65 years of age undergoing elective coronary artery bypass grafting (CABG). The mean age of the 90 persons in the original sample was 72.27 (+/-4.85) years. At follow-up x = 18.73, s = 2.56 months postsurgery), 90% (n = 79 alive, n = 2 deceased, proxy completed interview) were contacted; 73% (n = 59)completed the telephone interview; and 9% (n = 8) were alive but lost to follow-up. BMI (kg/m(2)) was calculated from self-reported weight at follow-up. Out-comes included the Physical Component Summary(PCS) scale of the SF-36 Health Survey and readmission data. The ()x (s) for BMI at preoperative, postoperative, postdischarge, and follow-up were 28.1 (4.9) kg/m(2), 28.76 (4.9) kg/m(2), 27.11 (4.8) kg/m(2), and 27.95(4.7) kg/m(2), respectively. BMI changed over time, P <0.05. Those who were readmitted lost more weight between preoperative and postdischarge than those who were not readmitted (()f BMI = -2.26 vs. ()x BMI =-1.35), t = 2.17, df = 27.05, P = 0.04. Those who lost less weight between preoperative and postdischarge were less likely to be readmitted, X2 = 5.755 (1), P =0.02, with 25% sensitivity and 92% specificity. The ()x(s(x)(-)) for PCS at preoperative, postdischarge, and follow-up were 36.93 (1.62), 35.72 (1.27), and 42.26 (1.45), respectively, reflecting change over time, F =11.43 (2), P < 0.001. At follow-up, older elective CABG patients do not appear to regain weight lost between preoperative and postdischarge; however,self-reported physical health is improved. Also, initial weight loss is related to readmissions.
本研究的目的是描述年龄≥65岁接受择期冠状动脉旁路移植术（CABG）的患者术后健康结局随体重指数（BMI）变化而变化的程度。原始样本中90人的平均年龄为72.27（±4.85）岁。在随访时（术后x = 18.73，s = 2.56个月），90%（n = 79人存活，n = 2人死亡，由代理人完成访谈）被联系；73%（n = 59）完成了电话访谈；9%（n = 8）存活但失访。BMI（kg/m²）根据随访时自我报告的体重计算得出。结局包括SF-36健康调查的生理健康总结（PCS）量表和再入院数据。术前、术后、出院后及随访时BMI的（）x（s）分别为28.1（4.9）kg/m²、28.76（4.9）kg/m²、27.11（4.8）kg/m²和27.95（4.7）kg/m²，BMI随时间变化，P <0.05。再入院患者术前至出院后体重减轻比未再入院患者更多（（）f BMI = -2.26 vs.（）x BMI = -1.35），t = 2.17，df = 27.05，P = 0.04。术前至出院后体重减轻较少的患者再入院可能性较小，X² = 5.755（1），P = 0.02，敏感度为25%，特异度为92%。术前、出院后及随访时PCS的（）x（s（x）（-））分别为36.93（1.62）、35.72（1.27）和42.26（1.45），反映了随时间的变化，F = 11.43（2），P <0.001。在随访时，年龄较大的择期CABG患者似乎未恢复术前至出院后减轻的体重；然而，自我报告的身体健康状况有所改善。此外，初始体重减轻与再入院有关。
