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Paucibacillary tuberculosis--a retrospective study
1Department of Microbiology, VP Chest Institute, Delhi.
Journal of the Indian Medical Association
|October 31, 2002
Summary
Paucibacillary tuberculosis, often smear-negative but culture-positive, presents treatment challenges. This study found 34.8% of respiratory patients had paucibacillary tuberculosis, particularly those aged 45 and above.
Area of Science:
- Pulmonary Medicine
- Infectious Diseases
- Microbiology
Background:
- Paucibacillary tuberculosis (PB-TB) complicates tuberculosis (TB) diagnosis and control.
- Effective management requires understanding the prevalence of PB-TB in diverse patient populations.
Purpose of the Study:
- To determine the prevalence of paucibacillary tuberculosis among patients with respiratory symptoms.
- To analyze demographic factors associated with smear-negative TB cases.
Main Methods:
- Retrospective analysis of sputum smear microscopy and culture results from 1992-1998.
- Inclusion criteria: patients with respiratory symptoms attending the outpatient department.
- Data stratified by age and sex.
Main Results:
- 34.8% of cases were classified as paucibacillary (smear-negative, culture-positive).
- No significant influence of sex on smear examination results was observed.
- Smear-negative cases were more frequent in the age group of 45 years and older (p < 0.05).
Conclusions:
- A significant proportion of respiratory patients present with paucibacillary tuberculosis.
- Age is a notable factor in the occurrence of smear-negative TB.
- Culture examination is crucial for diagnosing paucibacillary tuberculosis.