Correct measurement of height is important when assessing lung function values

Measurement of stature is a prerequisite for determination of the normal lung function since reference equations are based on stature (standing height). We investigated the optimal method for measuring stature and for testing the current practice.

We measured the stature of 87 subjects using a digital-counter stadiometer and a wall-mounted bench rule. Stature was also estimated based on finger-reach measurement, and self-reported stature was recorded. Results were compared using Altman-Bland plots. An email survey asking about written instruction on the practice for measuring stature was performed.

The Harpenden stadiometer delivered results reproducible within ± 0.29 cm and the bench rule compared with the Harpenden stadiometer yielded results within ± 0.59 cm. The Harpenden stadiometer was the faster of the two methods. With two exceptions, Danish lung function laboratories did not use a written instruction on measurement of stature in our sample.

It is necessary to focus on correct measurement of stature. Measurement of stature can be performed accurately with stadiometers with either digital or analogue counters. The digital stadiometer was the faster of the two.

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