Effect of dichotomising age in multivariate model analysis [11]

Thorax

Volumn 61, Issue 6, 2006, Pages 548-

  Yohannes, A M ^a   Connolly, M J ^b  

^a MANCHESTER METROPOLITAN UNIVERSITY   (United Kingdom)

^b UNIVERSITY OF AUCKLAND   (New Zealand)

Author keywords

[No Author keywords available]

Indexed keywords

AGE; CARBON DIOXIDE TENSION; CHRONIC OBSTRUCTIVE LUNG DISEASE; DISEASE EXACERBATION; FOLLOW UP; HUMAN; LETTER; MORBIDITY; MORTALITY; MULTIVARIATE ANALYSIS; OXYGEN THERAPY; PRIORITY JOURNAL; PROGNOSIS; QUALITY OF LIFE;

ACUTE DISEASE; AGE FACTORS; HUMANS; MULTIVARIATE ANALYSIS; PULMONARY DISEASE, CHRONIC OBSTRUCTIVE;

EID: 33745209660     PISSN: 00406376     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Letter

References (5)

1. Soler-Cataluña JJ, Martinez-Garcia MÁ, Román Sánchez P, et al. Severe acute exacerbations and mortality in patients with chronic obstructive pulmonary disease. Thorax 2005;60:925-31.
2. Royston P, Altman DG, Sauerbrei W. Dichotomizing continuous predictors in multiple regression a bad idea. Star Med 2006;(in press).
3. Cohen J. The cost of dichotomization. Appl Psychol Measure 1983;7:249-53.
4. Irwin JR, McClelland GH. Negative consequences of dichotomizing continuous predictor variables. J Marketing Res 2003;40:366-71.
5. Yohannes AM, Baldwin RC, Connolly MJ. Predictors of 1 -year mortality in patients discharged from hospital following acute exacerbation of chronic obstructive pulmonary disease. Age Ageing 2005;34:491-6.