Department of Pediatrics, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
Rhinology. 2011 Aug;49(3):304-8. doi: 10.4193/Rhino10.266.
Allergic rhinitis is a global public health issue. Peak nasal inspiratory flow (PNIF) can help in the assessment of patients with allergic rhinitis. However, reference values in the literature for PNIF in school children and adolescents are limited. THE AIM OF THIS STUDY was to identify reference values of PNIF among children and adolescents.
We conducted a cross-sectional study to identify reference values of PNIF among healthy school children and adolescents aged from eight to fifteen years old, selected from 14 randomly selected public schools. Participants performed measurements of PNIF using the In-check-inspiratory flow meter (Clement Clarke, Harlow, England). PNIF values were correlated to gender, age, height, weight and body mass index.
A total of 526 subjects participated in the study. The final linear regression model for PNIF allowed obtaining the following equation for subjects aged from eight to 15 years old: PNIF (l/m) = height (centimeters) x 0.7 + 11.2, for boys and PNIF (l/m) = height (centimeters) x 0.7, for girls.
the equations of the final regression model resulted in a simple formula to obtain reference values of PNIF for subjects aged from 8 to 15 years old.
变应性鼻炎是一个全球性的公共卫生问题。峰值鼻吸气流量（PNIF）有助于评估变应性鼻炎患者。然而，文献中关于儿童和青少年 PNIF 的参考值有限。本研究旨在确定儿童和青少年 PNIF 的参考值。
我们进行了一项横断面研究，以确定从 14 所随机选择的公立学校中选择的 8 至 15 岁健康学龄儿童和青少年的 PNIF 参考值。参与者使用 In-check 吸气流量计（Clement Clarke，Harlow，England）测量 PNIF。PNIF 值与性别、年龄、身高、体重和体重指数相关。
共有 526 名受试者参加了研究。PNIF 的最终线性回归模型允许为 8 至 15 岁的受试者获得以下方程：PNIF（l/m）=身高（厘米）x 0.7 + 11.2，男孩；PNIF（l/m）=身高（厘米）x 0.7，女孩。
最终回归模型的方程得出了一个简单的公式，用于获得 8 至 15 岁受试者的 PNIF 参考值。
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