Faculty of Nursing of the University of Colima. Av. Universidad # 333, Colonialas Víboras, C.P. 28040, Colima, Colima, México.
J Nutr Health Aging. 2012;16(6):525-8. doi: 10.1007/s12603-012-0013-4.
To identify serum ferritin levels and their association with nutritional status determined by Body Mass Index in older adults at four eldercare facilities.
An exploratory, cross-sectional study was carried out on 100 older adults residing at eldercare facilities in Colima, Mexico. Association between blood serum ferritin levels and nutritional status determined by Body Mass Index was evaluated. Ferritin levels were determined by means of chemiluminescence of blood samples obtained from subjects under control conditions. Descriptive statistics were used to analyze demographic characteristics. Student's t test and chi-square test were used to compare ferritin levels and Body Mass Index, respectively, between sexes. Statistical significance was considered to exist when P≤ 0.05. Pearson's correlation was used to establish the relation between Body Mass Index and serum ferritin levels.
Mean serum ferritin levels were 59.9489 ng/mL in women and 86.9266 ng/mL in men (P= 0.12). In regard to Body Mass Index there was statistical significance between normal vs overweight/obesity (P = 0.008), but not between normal vs underweight (P = 0.34). Body Mass Index/serum ferritin correlation was not statistically significant (Pearson's r = 0.003).
The quantification of a single serum indicator is insufficient for determining nutritional status in the older adult.
在墨西哥科利马州的四个养老院中，确定老年人的血清铁蛋白水平及其与身体质量指数（BMI）所确定的营养状况之间的关系。
对居住在养老院的 100 名老年人进行了一项探索性的横断面研究。评估了血清铁蛋白水平与 BMI 所确定的营养状况之间的关系。通过对受试者在对照条件下采集的血液样本进行化学发光法来确定铁蛋白水平。采用描述性统计分析方法来分析人口统计学特征。采用 Student's t 检验和卡方检验分别比较了男女之间的铁蛋白水平和 BMI。当 P≤0.05 时，认为存在统计学意义。采用 Pearson 相关分析建立 BMI 与血清铁蛋白水平之间的关系。
女性的平均血清铁蛋白水平为 59.9489ng/mL，男性为 86.9266ng/mL（P=0.12）。在 BMI 方面，正常体重与超重/肥胖之间存在统计学差异（P=0.008），但正常体重与消瘦之间无统计学差异（P=0.34）。BMI 与血清铁蛋白的相关性无统计学意义（Pearson's r=0.003）。
单一血清指标的定量不足以确定老年人的营养状况。
