References
- The International Study of Asthma and Allergies in Childhood (ISAAC) Steering Committee. Worldwide variations in the prevalence of asthma symptoms: the International Study of Asthma and Allergies in Childhood (ISAAC). Eur Respir J 1998; 12: 315–335
- Garcia E, Aristizabal G, Vasquez C, Rodriguez-Martinez C E, Sarmiento O L, Satizabal C L. Prevalence of and factors associated with current asthma symptoms in school children aged 6–7 and 13–14 yr old in Bogota, Colombia. Pediatr Allergy Immunol 2007, (in press)
- Smith D H, Malone D C, Lawson K A, Okamoto L J, Battista C, Saunders W B. A national estimate of the economic costs of asthma. Am J Respir Crit Care Med 1997; 156: 787–793
- Arshad S H, Stevens M, Hide D W. The effect of genetic and environmental factors on the prevalence of allergic disorders at the age of 2 years. Clin Exp Allergy 1992; 23: 504–51
- Ratageri V H, Kabra S K, Dwivedi S N, Seth V. Factors associated with severe asthma. Ind Pediatr 2000; 37: 1072–1082
- Bayona M, Montealegre F, Gomes de Andrade V L, Trevino F. Prognostic factors of severe asthma in Puerto Rico. P R Health Sci J 2002; 21: 213–219
- Pereira J C, Carswell F, Hughes A O. Assessment and prediction of asthma and its severity in the pediatric community. Rev Saude Publica 1990; 24: 437–44
- Leung T F, Lam C W, Chan I H, Li A M, Ha G, Tang N L, Fok T F. Inhalant allergens as risk factors for the development and severity of mild-to-moderate asthma in Hong Kong Chinese children. J Asthma 2002; 39: 323–330
- Kupczyk M, Kuprys I, Gorski P, Kuna P. Aspirin intolerance and allergy to house dust mites: important factors associated with development of severe asthma. Ann Allergy Asthma Immunol 2004; 92: 453–458
- Hong C Y, Ng T P, Wong M L, Koh K T, Goh L G, Ling S L. Lifestyle and behavioural risk factors associated with asthma morbidity in adults. QJM 1994; 87: 639–645
- Hara M, Suzuki S, Moroi T, Tateno A, Koya N. The investigation of asthmatic children by multiple factor analysis. The relation between severity of asthma and allergic factors. Arerugi 1989; 38: 1084–1092
- Ramsey C D, Celedon J C, Sred D L, Weiss S T, Cloutier M M. Predictors of disease severity in children with asthma in Hartford, Connecticut. Pediatr Pulmonol 2005; 39: 268–275
- Woolcock A J. Asthma: disease of a modern lifestyle. Med J Aust 1996; 165: 358–359
- http://www.cia.gov/cia/publications/factbook/geos/co.html CIA—The World Factbook. Colombia. Available at (accessed 28 June 2006)
- Uribe Botero E. Air pollution management in two Colombian cities: case study. Universidad de los Andes, BogotaColumbia 2005, Documento CEDE 2005-3. ISSN 1657–7191
- Castro Rodriguez J A, Holberg C J, Wright A L, Martinez F D. A clinical index to define risk of asthma in young children with recurrent wheezing. Am J Respir Crit Care Med 2000; 162: 1403–1406
- Global Initiative for Asthma (GINA), National Hearth, Lung, and Blood Institute (NHLBI). Global strategy for asthma management and prevention. US Department of Health and Human Services, Bethesda, MarylandUSA 2003
- Sun G W, Shook T L, Kay G L. Inappropriate use of bivariable analysis to screen risk factors for use in multivariable analysis. J Clin Epidemiol 1996; 49: 907–916
- Wright A L, Holberg C J, Taussig L M, et al. Factors influencing the relation of infant feeding to asthma and recurrent wheeze in childhood. Thorax 2001; 56: 192–19
- Hosmer D W, Jr, Lemeshow S. Applied Logistic Regression. Wiley, New York 1989
- Squillace S P, Sporik R B, Rakes G, et al. Sensitization to dust mites as a dominant risk factor for asthma among adolescents living in Central Virginia. Multiple regression analysis of a population-based study. Am J Respir Crit Care Med 1997; 156: 1760–1764
- Martinez F D, Wright A L, Taussig L M, et al. Asthma and wheezing in the first six years of life. N Engl J Med 1995; 332: 133–138
- Kull I, Wickman M, Lilja G, Nordvall S L, Pershagen G. Breast feeding and allergic diseases in infants—a prospective birth cohort study. Arch Dis Child 2002; 87: 478–481
- Saarinen U M, Kajosaari M. Breastfeeding as prophylaxis against atopic diseases, prospective follow-up study until 17 years. Lancet 1995; 346: 1065–1069
- Oddy W H, Holt P G, Sly P D, et al. Association between breast-feeding and asthma in 6-year-old children: findings of a prospective birth cohort study. BMJ 1999; 319: 815–819
- Lewis S, Butland B, Strachan D, et al. Study of the aetiology of wheezing illnesses at age 16 in two national British birth cohorts. Thorax 1996; 51: 670–676
- Schwartz J, Gold D, Dockery D W, et al. Predictors of asthma and persistent wheeze in a national sample of children in the United States. Am Rev Respir Dis 1990; 142: 555–562
- Kerner J A, Jr. Use of infant formulas in preventing or postponing atopic manifestations. J Pediatr Gastroenterol Nutr 1997; 24: 442–446
- Hanson L A. Human milk and host defence: immediate and long-term effects. Acta Paediatr 1999; 88: S42–S46
- Howie P W, Forsyth J S, Ogston S A, et al. Protective effect of breastfeeding against infection. BMJ 1990; 300: 11–16
- Durkin M S, Islam S, Hasan Z M, Zaman S S. Measures of socioeconomic status for child health research: comparative results from Bangaldesh and Pakistan. Soc Sci Med 1994; 38(9)1289–1297
- Grummer-Strawn L M. The effect of changes in population characteristics on breastfeeding trends in fifteen developing countries. Int J Epidemiol 1996; 25: 94–102
- Gerrard J, Geddes C, Reggin P, Gerrard C, Horne S. Serum IgE levels in white and Metis communities in Saskatchewan. Ann Allergy 1976; 37: 91–100
- Romagnini S. Human TH1 and TH2 subsets: regulation of differentiation and role in protection and immunopathology. Arch Allergy Immunol 1992; 98: 279–285
- Bodner C, Godden D, Seaton A. Family size, childhood infections, and atopic diseases. Thorax 1998; 53: 28–32
- Ponsonby A L, Couper D, Dwyer T, Carmichael A, Kemp A. Relationship between early life respiratory illness, family size over time, and the development of asthma and hay fever: a seven-year follow-up study. Thorax 1999; 54: 664–669
- Bodner C, Anderson W J, Reid T S, Godden D J. Childhood exposure to infection and risk of adult onset wheeze and atopy. Thorax 2000; 55: 383–387
- Shirakawa T, Enomoto T, Shimazu S, et al. The inverse association between tuberculin responses and atopic disorder. Science 1997; 275: 77–79
- Martinez F D. Heterogeneity of the association between lower respiratory illness in infancy and subsequent asthma. Proc Am Thorac Soc 2005; 2: 157–161
- Mielck A, Reitmeir P, Wist M. Severity of childhood asthma by socioeconomic status. Int J Epidemiol 1996; 25: 388–393
- Strachan D P, Anderson H R, Limb E S, O'Neill A, Wells N. A national survey of asthma prevalence, severity, and treatment in Great Bretain. Arch Dis Child 1994; 70: 174–178
- Claudio L, Tulton L, Doucette J, Landrigan P J. Socioeconomic factors and asthma hospitalization rates in New York. J Asthma 1999; 36: 343–350
- Poyser M A, Nelson H, Ehrlich R I, Bateman E D, Parnell S, Puterman A, Weinberg E. Socioeconomic deprivation and asthma prevalence and severity in young adolescents. Eur Respir J 2002; 19: 892–898
- Ball T M, Castro-Rodriguez J A, Griffith K A, Holberg C J, Martinez F D, Wright A L. Siblings, day-care attendance, and the risk of asthma and wheezing during childhood. N Engl J Med 2000; 343: 538–543
- Shaheen S O, Sterne J AC, Songhurst C E, Burney P GJ. Frequent paracetamol use and asthma in adults. Thorax 2000; 55: 266–270
- Kelly F J, Mudway I, Blomberg A, Frew A, Sandstrom T. Altered lung antioxidant status in patients with mild asthma. Lancet 1999; 354: 482–483
- Smith L J, Houston M, Anderson J. Increased levels of glutathione in bronchoalveolar fluid from patients with asthma. Am Rev Respir Dis 1993; 147: 1461–1464
- Comhair S AA, Bhathena P R, Dweik R A, Kavuru M, Erzurum S C. Rapid loss of superoxide dismutase activity during antigen-induced asthmatic response. Lancet 2000; 355: 624
- Dimova S, Hoet P HM, Nemery B. Paracetamol (acetaminophen) cytotoxicity in rat type II pneumocytes and alveolar macrophages in vitro. Biochem Pharmacol 2000; 59: 1467–1475
- Newson R B, Shahen S O, Chinn S, Burney P GJ. Paracetamol sales and atopic disease in children and adults: an ecological analysis. Eur Respir J 2000; 16: 817–823
- Peterson J D, Herzenberg L A, Vasquez K, Waltenbaugh C. Glutathione levels in antigen-presenting cells modulate Th1 versus Th2 response patterns. Proc Natl Acad Sci USA 1998; 95: 3071–3076
- Martinez F D, Wright A L, Holberg C J, Morgan W J, Taussig L M. Maternal age as a risk factor for wheezing lower respiratory illness in the first year of life. Am J Epidemiol 1992; 136: 1258–1268
- American Academy of Pediatrics. Care of adolescent parents and their children. Pediatrics 2001; 107: 429–434
- Taeusch H W, Avery M E. Regulation of pulmonary alveolar development in late gestation and the perinatal period. Lung Biology in Health and Disease, vol 6. Development of the Lung, W A Hodson. Marcel Dekker, New York 1997; 399–418
- LoMassaro D J, Massaro G D. The regulation of the formation of pulmonary alveoli. Chronic Lung Disease in Early Infancy, R D Bland, J J Coalson. Marcel Dekker, New York 2000; 479–492
- Martinez F D, Morgan W J, Wright A J, et al. Diminished lung function as a predisposing factor for wheezing respiratory illness in infants. N Engl J Med 1998; 319: 1112–1117
- Infante-Rivard C. Young maternal age: a risk factor for childhood asthma?. Epidemiology 1995; 6: 178–180
- Stout J W, Visness C M, Enright P, Lamm C, Shapiro G, Gan V N, et al. Classification of asthma severity in children. The contribution of pulmonary function testing. Arch Pediatr Adolesc Med 2006; 160: 844–850