Bar-Yishay E, Shulman D L, Beardsmore C S, Godfrey S
Am Rev Respir Dis. 1987 Apr;135(4):954-6. doi: 10.1164/arrd.1987.135.4.954.
Functional residual capacity (FRC) was measured by the closed-circuit helium dilution method in 41 supine healthy children 1 month to 8 yr of age. In 20 children, the measurement was carried out while they were awake, and in the others, who were less cooperative, testing was done during ketamine anesthesia before elective surgery. There was no significant difference in the FRC values between these groups, and they were subsequently analyzed as a single group. For males and females separately and combined, FRC correlated significantly with height, age, and weight, both with linear and nonlinear regression analyses. No significant difference between the sexes was found. The best correlation of FRC was with height; the linear equation being FRC (ml) = -457.3 + 8.8 X height (cm) (r2 = 0.662), and the nonlinear equation being FRC (ml) = 0.0052 X [height (cm)]2.44 (r2 = 0.827).
采用闭路氦稀释法对41名1个月至8岁仰卧位健康儿童的功能残气量（FRC）进行了测量。20名儿童在清醒状态下进行测量，其他不太配合的儿童则在择期手术前氯胺酮麻醉期间进行测试。这些组之间的FRC值无显著差异，随后将它们作为一个单一组进行分析。分别对男性和女性以及合并后的情况进行分析，通过线性和非线性回归分析，FRC与身高、年龄和体重均显著相关。未发现性别之间存在显著差异。FRC与身高的相关性最佳；线性方程为FRC（毫升）=-457.3 + 8.8×身高（厘米）（r² = 0.662），非线性方程为FRC（毫升）= 0.0052×[身高（厘米）]².44（r² = 0.827）。
