Improving Sputum Microscopy for Tuberculosis Diagnosis
Author Information
Author(s): Kaore Navinchandra M., Date Kalpana P., Thombare Vilas R.
Primary Institution: Peoples College of Medical Sciences and Research Centre, Bhopal, India
Hypothesis
Does the sodium hypochlorite concentration technique increase the sensitivity of sputum microscopy for tuberculosis diagnosis?
Conclusion
The study found a significant increase in smear positive cases after using the sodium hypochlorite concentration method.
Supporting Evidence
- 77 samples were positive by routine method, while 119 were positive by the concentration method.
- This method diagnosed 15 additional patients who would have been missed by the routine method.
- The increase in smear positivity was 7.11%, which is statistically significant.
- Concentration method showed a 44.11% increase in diagnosed cases compared to the routine method.
Takeaway
Using a special solution can help doctors find more cases of tuberculosis in patients' sputum samples.
Methodology
A cross-sectional study comparing routine sputum microscopy with a concentration method using sodium hypochlorite.
Potential Biases
Observer bias was minimized by having two microbiologists independently evaluate the smears.
Limitations
The study was conducted at a single center and may not be generalizable to all settings.
Participant Demographics
The study included 219 patients, with 168 males (76.71%) and 51 females (23.28%).
Statistical Information
P-Value
0.001021
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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