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. 2017 Aug 25;17:118. doi: 10.1186/s12890-017-0456-9

Table 5.

Coefficient estimates of reference equations for FENO. The 5th percentile, median value and the 95th percentiles are presented for females and males respectively

Women (n = 1406) Men (n = 1410)
5th perc. Median 95th perc. 5th perc. Median 95th perc.
Intercept −6.9 −12.7 4.0 −5.1 −14.1 84.7
Age (years) 0.0629 0.2205 0.4081 0.0508 0.1444 0.2682
Height (cm) 0.0736 0.1189 0.1414 0.0694 0.1559 −0.2501
Phadiatop positive 0.0 0.0 0.0 0.0 0.0 0.0
Phadiatop negative −0.9 −2.7 −16.1 −1.1 −2.8 −15.0