Indoor environmental risk factors and childhood asthma: a case-control study in a subtropical area

C Y Yang1, Y C Tien, H J Hsieh

  • 1School of Public Health, Kaohsiung Medical College, Taiwan, Republic of China.

Pediatric Pulmonology
|September 4, 1998
PubMed

Insights

Home dampness is linked to childhood asthma in subtropical regions. This finding highlights a new public health risk factor for asthma development in these areas.

Area of Science:

  • Environmental Health
  • Pediatric Pulmonology
  • Epidemiology

Background:

  • Childhood asthma is a significant health concern, particularly in subtropical areas.
  • Indoor environmental factors are suspected contributors to asthma development.
  • Previous research has not definitively identified specific indoor risks in subtropical climates.

Purpose of the Study:

  • To investigate the association between indoor environmental factors and childhood asthma.
  • To identify specific home-related risks for asthma in a subtropical region.
  • To provide evidence for public health interventions.

Main Methods:

  • A hospital-based case-control study was conducted in Kaohsiung, Taiwan.
  • Eighty-six children with newly diagnosed asthma (cases) and 86 healthy children (controls) were recruited.
  • Parental questionnaires were used to collect data on indoor environmental factors.

Main Results:

  • Home dampness was significantly associated with childhood asthma.
  • The adjusted odds ratio for asthma associated with home dampness was 1.77 (95% CI, 1.24-2.53).
  • No other indoor environmental factors showed a statistically significant association.

Conclusions:

  • Home dampness represents a novel public health risk factor for childhood asthma.
  • Reducing indoor dampness may be a key strategy for asthma prevention in subtropical areas.
  • Further research is warranted to explore the mechanisms linking dampness and asthma.

Related Concept Videos

Asthma-I: Introduction01:29

Asthma-I: Introduction

Asthma is a chronic respiratory ailment that requires careful management due to its varying symptoms and influencing factors. It is characterized by airway inflammation, bronchial hyperresponsiveness, and reversible airflow obstruction, leading to symptoms like wheezing, shortness of breath, chest tightness, and coughing. The symptom frequency and intensity may vary considerably over time. It is also linked to immune system responses to allergens and irritants, highlighting the complex...
Asthma I: Introduction01:28

Asthma I: Introduction

Asthma is a chronic inflammatory disorder of the airways characterized by variable airflow obstruction and heightened bronchial responsiveness to a wide range of triggers. The underlying inflammation leads to airway swelling, mucus hypersecretion, and smooth muscle constriction, all of which narrow the airway lumen and impede airflow. Clinically, asthma presents with recurrent episodes of wheezing, shortness of breath, chest tightness, and coughing, symptoms that typically vary in intensity and...
Asthma III: Clinical Manifestations01:13

Asthma III: Clinical Manifestations

Asthma presents with a characteristic pattern of episodic respiratory symptoms that reflect underlying airway inflammation, bronchoconstriction, and mucus hypersecretion. Although severity varies among individuals, certain clinical manifestations are considered hallmarks of the disorder and often guide diagnosis and assessment.Respiratory SymptomsA persistent cough is one of the most common early features of asthma. It is frequently dry and tends to worsen at night or in the early morning,...
Asthma-II: Pathophysiology and Classification01:26

Asthma-II: Pathophysiology and Classification

Asthma is a prevalent chronic respiratory condition marked by inflammation and hyperresponsiveness of the airways. Its pathophysiology involves complex interactions among inflammatory pathways, immune responses, and neural mechanisms.
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
Asthma: Pathogenesis and Management01:20

Asthma: Pathogenesis and Management

Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
Chronic Obstructive Pulmonary Disease I: Introduction01:23

Chronic Obstructive Pulmonary Disease I: Introduction

Chronic obstructive pulmonary disease is a common, preventable, and treatable respiratory disorder characterized by persistent symptoms and progressive airflow limitation. This limitation results from a combination of small-airway disease (obstructive bronchiolitis) and parenchymal destruction (emphysema), both driven by chronic inflammation from exposure to harmful particles or gases.The disease includes two main pathological entities: emphysema, marked by destruction of alveolar walls and...