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Lung. 2001;179(2):83-91.

Exhaled nitric oxide: the effects of age, gender and body size.

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University Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China.


Since little is known of the effects of age, gender, and body size on exhaled nitric oxide (NO) production, we have conducted a prospective study to examine these factors in a healthy nonsmoking women (mean age +/- SD 47.7 +/- 15.8, range 20-79 years). Exhaled NO was measured by an automatic chemiluminescence analyzer (Sievers NO Analyser 280) at steady expiration. Men had significantly higher exhaled NO levels than women (p = 0.001). Although exhaled NO levels did not correlate with age (r = 0.12, p = 0.17), it correlated significantly with height (r = 0.23, p = 0.02), weight (r = 0.34, p.

[Indexed for MEDLINE]

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