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Table 3 Studies assessing the health effects of indoor air pollution in Sri Lanka

From: Air pollution and health in Sri Lanka: a review of epidemiologic studies

Reference, Study Location and data collection period Study Design Subject Characteristics and sample size Exposure air pollutants Health outcomes Results Adjustment for confounding factors Limitations
Cross sectional studies
Karunasekara KAW et al.[40],
Gampaha district.
Children, 5-11 years,
asthmatics (n = 441);
non asthmatics (n = 1510)
No specific types are measured Asthma Prevalence of asthma was significantly higher in the presence of firewood smoke Yes No measurement of exposure
Lankatilake KN et al.[20],
Kotte Medical Officer of Health area.
Households = 397
children = 604
women = 130
Respirable dust Respiratory symptoms Respiratory symptoms were significantly higher in houses using firewood Yes Only respirable dust levels were measured
Pathirane S M et al.[43]Kegalle and Kalutara districts.
New borns (n = 369) No specific types Low birth weight Low birth weight was associated with fuel type and kitchen characteristics No No measurement of exposure
Case-control Studies
Karunasekara KAW et al.[39],
Colombo North Teaching Hospital
Children 1-10 years,
age matched cases and controls (n = 300)
No specific type Asthma Dust at home was a significant risk factor for asthma Yes No measurement of exposure
Perera MAKK P et al.[42],
National Cancer Hospital
Lung cancer patients (n = 128) and controls (n = 128) No specific type Lung cancer No significant association with biomass exposure No No measurement of exposure
Ranasinghe MH et al.[41], National Eye Hospital, Colombo
Patients with cataracts (n = 197) and controls (n = 190) No specific type Cataract Cataracts significantly associated with biomass exposure No No measurement of exposure