Assessment of XXXX perception by Borg scale in asthmatic @entity1 : reproducibility and applicability to different stimuli.

@entity1 @entity748 @entity1353 @entity33362 @entity2710
In asthmatics, the score of bronchoconstriction-associated @entity1353 at 20% fall in forced expiratory volume at first second (FEV1) evaluated on a Borg scale ( @entity33362 ) is a tool successfully used to measure the perception of symptoms. This prospective laboratory study evaluated the applicability of @entity33362 to assess the @entity1353 induced by ultrasonically nebulized distilled water (UNDW) and @entity2710 (M) and its reproducibility. Twenty-two mild and clinically stable asthmatic @entity1 performed UNDW and M challenge tests. The @entity33362 was calculated by linear interpolation of the last two points of the perception/fall in FEV1 curve of the UNDW and M tests. The reproducibility of @entity33362 M was assessed by repeating measurements on 2 separate days by 3 weeks. @entity33362 UNDW and @entity33362 M did not differ and were respectively 1.82 +/- 1.85 and 2.03 +/- 1.86. They were significantly related (rs=0.63; p<0.01) and the bias between @entity33362 UNDW and @entity33362 M was -0.21 with the limits of agreement ranging from -3.2 to 3.6. The intraclass correlation coefficient for repeated measurement of @entity33362 M was 0.82; the bias between the two measurements was 0.2 with the limits of agreement ranging from -2.8 to 3.2. All @entity1 had a measurable @entity1353 perception degree on a Borg scale during both distilled water challenges and @entity2710 . @entity748 @entity1 with normal, exaggerated or poor @entity1353 perception were also similar for both stimuli. In addition, @entity33362 showed a good reproducibility and this allows the serial evaluation of @entity1 's @entity1353 perception by this technique in clinical settings and in the physiology laboratory.
