Reply to: Height seems to be the only variable that determines lung oscillometry indices

This is the authors' abstract. We don't add key points for this paper.

We greatly appreciate the positive comments raised by D. Ghorpade and colleagues regarding our recent publication on reference equations for impulse oscillometry (IOS) in persons aged from 2.7 to 90 years [1], and we fully agree with them about the exciting role that IOS is gaining for the assessment of lung function. In their communication, these renowned researchers made some speculations that induced them to conclude that the subject's height is the variable with the upmost relevance for lung function, as evaluated by IOS, and they postulated that height may be the only variable needed for interpreting the results of IOS parameters. Of course, we agree with the long-standing notion that height is a major determinant of lung mechanics, but the contributing role of sex, age and body weight have always been acknowledged too [2]. Age, sex and BMI, as well as height, should be used in IOS reference equations <https://bit.ly/3VMUMLz>