Prognostic Factors of Grade 2-3 Endo-Periodontal Lesions Treated Nonsurgically in Patients with Periodontitis: A Retrospective Case-Control Study

Table 1

Demographic data of the patients in the high and low responder groups at baseline.

Demographic data	High responder (n = 72)	Low responder (n = 68)	value
Gender			0.657
Male	44 (61%)	38 (56%)
Female	28 (39%)	30 (44%)
Age (years, x ± s)^†	49.58 ± 11.12	48.00 ± 10.83	0.991
Smoking			0.032^‡
No	50 (70%)	28 (44%)
Yes	22 (30%)	40 (56%)

Differences between the two groups were analyzed using the chi-square test. ^†Differences between the two groups were analyzed using the independent-samples t-test. .