Table 1. Baseline characteristics of patients randomized in the two groups.

Variables		Amoxicillin group	Tetracycline group	P value
Number of subjects		113	115
Age (mean±SD) and range		41.8±13.96 (19–72)	39.84±14.36 (18–74)	0.29*
Gender	Male	61	56	0.42**
	Female	52	59
Lost to follow up		2	4
Cannot tolerate drugs		1	6
Compliance (taken 80% of tablets)		(110/113)98.23%	(105/115)91.30%

* Independent Sample T Test;

**Pearson Chi Square Test