Prevalence of asthma and allergic disorders in school  children of Karachi

Urooj Gul Samoo; Shaista Ehsan

doi:10.18203/2349-3291.ijcp20214071

Authors

Urooj Gul Samoo Department of Peadiatrics Cardiology, National Institute of Cardiovascular Disease, Sindh, Pakistan
Shaista Ehsan Department of Peadiatrics, Ziauddin University Hospital, Sindh, Pakistan

DOI:

https://doi.org/10.18203/2349-3291.ijcp20214071

Keywords:

Allergic disorders, Asthma, Prevalence

Abstract

Background: The aim of the study was to determine the frequency of asthma and allergic diseases and to identify the associated risk factors in school-aged children of Karachi.

Methods: This prospective, cross-sectional study was conducted from August 2019 to January 2020 on school-aged children (4-15 years) of Karachi. Non-probability purposive sampling technique was used, data was analyzed using SPSS version 20.

Results: The prevalence of allergic rhinitis and eczema in the study population was 22.1%, asthma 14% and 34% had a history of wheezing in the last 12 months. Food allergy was present in 15.5% of the study population. The predisposing factors were exposure to dust in 32.6%, passive smoking in 30.8%, perfume smell in 27.3% and the presence of pets in the house in 23.2%. Male gender and maternal asthma were significantly associated with the development of these allergic disorders in children (p=0.033).

Conclusions: There is a high prevalence of allergic disorders and asthma amongst the school children of Karachi. Environmental factors such as exposure to dust and passive smoking are significant predisposing factors. There is an urgent need to conduct further epidemiological studies to identify high-risk groups and key modifiable factors.

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References

Pawankar R, Baena-Cagnani CE, Bousquet J, Canonica GW, Cruz AA, Kaliner MA et al. State of World Allergy Report 2008: Allergy and Chronic Respiratory Diseases. World Allergy Org J. 2008;1(6):S1-17.

Just J, Saint-Pierre P, Gouvis-Echraghi R, Laoudi Y, Roufai L, Momas I et al. Childhood Allergic Asthma Is Not a Single Phenotype. J Pediatr. 2014;164(4):815-20.

Bjerg A, Hedman L, Perzanowski MS, Platts-Mills T, Lundbäck B, Rönmark E. Family history of asthma and atopy: in-depth analyses of the impact on asthma and wheeze in 7- to 8-year-old children. Pediatrics. 2007;120(4):741-8.

Beasley R, Keil U, Von Mutius E, Pearce N. Worldwide variation in prevalence of symptoms of asthma, allergic rhino conjunctivitis and atopic eczema: ISAAC. Lancet. 1998;351(9111):1225-32.

Beasley R, Ellwood P, Asher I. International patterns of the prevalence of pediatric asthma: the ISAAC program. Pediatr Clin N Am. 2003;5(3):539-53.

Ostergaard MS, Nantanda R, Tumwine JK, Aabenhus R. Childhood as asthma in low-income countries: an invisible killer? Prim Care Respir J. 2012;21:214-9.

Hasnain SM, Khan M, Saleem A, Waqar MA. Prevalence of asthma and allergic rhinitis among school children of Karachi, Pakistan, 2007. J Asthma. 2009;46(1):86-90.

Majeed R, Rajar UD, Shaikh N, Majeed F, Arain AA. Risk factors associated with childhood asthma. J Coll Physicians Surg Pak. 2008;18(5):299-302.

Waqar MA, Khan M, Hassnain SM, Saleem A, Shaukat S, Sarwar S et al Prevalence of Allergy and Asthma in School Children of Islamabad, Pakistan. World Appl Sci J. 2009;6(3):426-32.

Asher MI, Montefort S, Bjorksten B, Lai CK, Strachan DP, Weil SK et al. Worldwide time trends in the prevalence of symptoms of asthma, allergic rhino conjunctivitis, and eczema in childhood: ISAAC phases one and three repeat multicountry cross-sectional surveys. Lancet. 2006;368:733-43.

Khan AA, Tanzil S, Jamali T, Shahid A, Naeem S, Sahito A. Burden of asthma among children in a developing megacity: childhood asthma study, Pakistan. J Asthma. 2014;51:891-9.

Balaji BS, Sha JSI, Elilarasi S. Analysis of the Prevalence of Bronchial Asthma in 6-17 Years Old Urban School Children Belonging to Lower Middle Class and Lower Income Groups. Int J Sci Stud. 2017;5(2):194-201.

Hassan MR, Kabir AR, Mahmud AM, Rehman F, Hossain MA, Bennoor KS et al. Self-reported asthma symptoms in children and adults of Bangladesh: findings of the National Asthma Prevalence Study. Int J Epidemiol. 2002;31(2):483-8.

Dhakar AS, Kamath R, Pattanshetty S, Mayya SS. Prevalence of childhood asthma among 3-6 years old children, Udipi, Taluk, Karnataka, India. GJMEDPH. 2015;4(6):1-7.

Kumar GS, Sarkar S, Sahu SK. Prevalence and factors associated with asthma among school children in rural Puducherry, India. Curr Pediatr Res. 2012;16(2):159-63.

Sarkar S, Mumu SJ, Shahjahan M, Flora MS, Hafeez MA. Prevalence of Bronchial Asthma Among Secondary School Students in Dhaka City. Bangl Med J. 2012;41(1):28-31.

Kwon JW, Kim BJ, Song Y, Seo JH, Kim TH, Yu J et al. Changes in the prevalence of childhood asthma in Seoul from 1995 to 2008 and its risk factors. Allergy, asthma immunol res. 2011;3(1):27-33.

Zobeiri M. Prevalence, Risk factors and Severity of Asthma Symptoms in Children of Kermanshah, IRAN: ISAAC Phase I, II. Acta Medica Iranica. 2011;49(3);184-7.

Rathore AW, Randhawa SM, Ain Q, Maqbool S. Wheezing conditions in early childhood: prevalence and risk factors among pre-school children. Ann King Edward Med Coll. 2005;11:14-6.

Weinmayr G, Weiland SK, Björkstén B, ISAAC Phase Two Study Group. Atopic sensitization and the international variation of asthma symptom prevalence in children. Am J Respir Crit Care Med. 2007;176:565-74.

Mitchell EA, Beasley R, Keil U, Montefort S, Odhiambo J, the ISAAC Phase Three Study Group. Association between tobacco and the risk of asthma, rhino conjunctivitis and eczema in children and adolescents: analyses from Phase Three of the ISAAC programme. Thorax. 2012;67:941-9.

Hill DA, Grundmeier RW, Ram G, Spergel JM. The epidemiologic characteristics of healthcare provider-diagnosed eczema, asthma, allergic rhinitis and food allergy in children: a retrospective cohort study. BMC Pediatr. 2016;16:133.