Table 1. Comparison of clinical data from TB patients who were treated with Scheme I or Scheme II. The data are expressed as mean ± standard deviation showing significant similarities between the used patient samples.

Clinical data	Scheme I	Scheme II	p*
Age (years)	58 ± 16	56 ± 12	0.71
Symptom duration (months)	3 ± 3	2 ± 1	0.83
Smoking history (packs-per-day years)	52 ± 43	50 ± 35	0.94

* Statistical analysis results: Mann-Whitney U test, p > 0.05.