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. 2026 Oct 21;24:1011–1020. doi: 10.3290/j.ohpd.c_2834

Table 1.

Baseline demographic and clinical characteristics of patients with recurrent aphthous stomatitis and healthy controls

Demographic characteristic

RAS group (n = 35)

Control group (n = 35)

p-value

Age in years, mean ± SD

29.6 ± 6.3

28.2 ± 5.9

0.418

BMI (kg/m2) mean ± SD

21.5 ± 2.3

22.2 ± 2.3

0.170

Sex, n (%)

0.630

Male

14 (40%)

17 (48.6%)

Female

21 (60%)

18 (51.4%)

Smoking (current/former), n (%)

11 (31.4%)

6 (17.1%)

0.012

Alcohol use, n (%)

8 (22.9%)

4 (11.4%)

0.028

Systemic diseases, n (%)

0 (0.0%)

0 (0.0%)

—

Concomitant medication, n (%)

0 (0.0%)

0 (0.0%)

—

Clinical characteristics (RAU group)

Disease duration in years, median (IQR)

3.8 (2.25–5.05)

—

—

Annual recurrence episodes, median (IQR)

6 (5.0–8.5)

—

—

Pain VAS score (0–10), mean ± SD

6.02 ± 1.38

—

—

Ulcer diameter in mm, mean ± SD

4.45 ± 1.14

—

—

RAS subtype, n (%)

—

Minor (MiRAS)

31 (88.5%)

—

Major (MjRAS)

4 (11.5%)

—

Herpetiform (HU)

0 (0.0%)

—