# Dietary and Genetic Factors in Asthma & Chronic Bronchitis in a Cohort of Chinese Singaporeans

> **NCT00342030** · — · COMPLETED · sponsor: **National Institute of Environmental Health Sciences (NIEHS)** · enrollment: 63257 (estimated)

## Conditions studied

- Chronic Bronchitis
- Asthma

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00342030
- **Lead sponsor:** National Institute of Environmental Health Sciences (NIEHS)
- **Sponsor class:** NIH
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2002-11-01
- **Primary completion:** —
- **Final completion:** 2012-04-12
- **Target enrollment:** 63257 (ESTIMATED)
- **Last updated:** 2017-07-02


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00342030

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00342030, "Dietary and Genetic Factors in Asthma & Chronic Bronchitis in a Cohort of Chinese Singaporeans". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT00342030. Licensed CC0.

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