‘‘PREDICTING WORSENING ASTHMA CONTROL FOLLOWING THE COMMON COLD’’. M.J. WALTER, M. CASTRO,S.J. KUNSELMAN, V.M. CHINCHILLI, M. RENO, T.P. RAMKUMAR, P.C. AVILA, H.A. BOUSHEY, B.T. AMEREDES,E.R. BLEECKER, W.J. CALHOUN, R.M. CHERNIACK, T.J. CRAIG, L.C. DENLINGER, E. ISRAEL, J.V. FAHY, N.N. JARJOUR,M. KRAFT, S.C. LAZARUS, R.F. LEMANSKE JR, R.J. MARTIN S.P. PETERS, J.W. RAMSDELL, C.A. SORKNESS,E.R. SUTHERLAND, S.J. SZEFLER, S.I. WASSERMAN, M.E. WECHSLER AND THE NATHIONAL HEART, LUNG ANDBLOOD INSTITUTE’S ASTHMA CLINICAL RESEARCH NETWORK. EUR RESPIR J 2008; 32: 1548–1554.
Professor Elizabeth Juniper kindly granted the Asthma Clinical
4) Additional question regarding current cold symptoms placed
Research Network permission to use her copyrighted, vali-
above the instructions. (This question was not incorporated in
dated shortened version of her Asthma Control Questionnaire
(ACQ) [1–3] in our studies. In the above study, we regret that
5) Instructions to identify each response by checking a box
we modified her questionnaire without her authorisation. In
(instead of circling the number in front of each response).
this study, we referred to it as the ‘‘PAX Feasibility AsthmaControl Questionnaire’’ and we posted this modified version
6) The words in each question, used to emphasise that patients
in the supplement to our article (figures S1 and S2).
should respond to each question as related to their asthma,
Throughout the manuscript our modified version was referred
were unboldened (this was not intentional, as bolding was not
to incorrectly as the ‘‘mini-ACQ’’ when in fact it should have
been referred to as ‘‘a modified version of a validated
7) Modification of Question 6: the phrase ‘‘how many puffs/
shortened version of the ACQ’’ [2, 3].
inhalations of short-acting bronchodilator (e.g., Ventolin/
Some of the modifications to the questionnaire were made with
Bricanyl)’’ was changed to ‘‘how many puffs of short-acting
the intention of facilitating data recording and entry, and
bronchodilator (e.g., Ventolin or Proventil)’’.
adapting for available short-acting bronchodilator drugs in
Professor Juniper has indicated these modifications may have
North America; other changes were made through inadvertence.
affected the validity, measurement properties and interpret-
The questionnaire was modified from the version faxed to us
ability of the ACQ. We are evaluating whether our changes are
by Professor Juniper to contain the following.
likely to have altered the properties of the questionnaire or theconclusions of the paper.
1) The numbers of the seven-point response scale weresubscripted and made smaller so that they were no longer
The authors apologise to the European Respiratory Journal and
adjacent to their verbal descriptor or the tick boxes. Professor
Professor Juniper for the modifications made to the validated
Juniper considers that this may have introduced bias and that
shortened version of the ACQ and for failing to obtain
some patients may not have realised that they were responding
authorisation for the changes and to follow proper copyright
to a numerical scale, especially as similar numbers were added
procedures. We will notify the ERJ Chief Editors as soon as wehave completed our evaluation of the possible impact, if any,
to the ‘‘yes/no’’ response to the cold question.
of the changes made to the interpretation of our findings.
2) Copyright ownership, date and statement (‘‘The AsthmaControl Questionnaire is copyrighted. It may not be altered,sold (paper or electronic), translated or adapted for another
medium without the permission of Elizabeth Juniper’’) were
1 Juniper EF, O’Byrne PM, Guyatt GH, et al. Development and
removed. The name of the questionnaire was changed.
validation of a questionnaire to measure asthma control. Eur Respir J1999; 14: 902–907.
3) Asthma Clinical Research Network (ACRN) header was
2 Juniper EF, O’Byrne PM, Roberts JN. Measuring asthma control in
group studies: do we need airway calibre and rescue beta2-agonistuse? Respir Med 2001; 95: 319–323.
3 Juniper EF, Svensson K, Mork AC, et al. Measurement properties
and interpretation of three shortened versions of the asthma controlquestionnaire. Respir Med 2005; 99: 553–558.
For editorial comments see page 1015.
THE ADJECTIVE The Adjective is a word expressing a quality of a substance. In English Adjectives are divided into q u a l i t a t i v e r e l a t i v e I. Three degrees of comparison: 1. positive (expresses a quality without comparison)2. comparative (denotes a higher degree of quality)3. superlative (denotes the highest degree)Mind the use of articles with the nouns modified