Evaluation of serum zinc levels in patients with recurrent aphthous stomatitis (RAS)

BMC Oral Health

Table 2 Mean serum zinc concentrations in the RAS study group divided into RAS subtypes and in controls

	Zn [μg/dL] Mean ± SD	p	95% CI	Power of the sample
RAS	84.2 ± 13.5	p = 0.7154	81.1–87.3	0.054
Controls	83.9 ± 10.0	p = 0.7154	81.5–86.2	0.054
RAS subgroups
MiRAS	83.5 ± 10.2	p = 0.2855	80.8–86.3	0.066
MaRAS	80.0 ± 10.1		74.1–85.9
HeRAS	103.8 ± 32.3		63.7–143.9
Mild-type	87.6 ± 18.8	p = 0.5032	80.2–95.0	0.089
Moderate-type	82.1 ± 7.5		79.4–84.7
Severe-type	82.8 ± 12.1		76.1–89.5
A type	83.1 ± 10.6	p = 0.7929	80.4–89.5	0.431
B type	88.2 ± 21.1	p = 0.7929	76.9–99.4	0.431

Legend:
MiRAS- subgroup with minor aphthous stomatitis
MaRAS- subgroup with major aphthous stomatitis
HeRAS- subgroup with herpetiform aphthous stomatitis
Mild-type- subgroup with mild course of RAS, defined as having episodes less frequently than 3-month intervals
Moderate-type- subgroup with moderate course of RAS, defined as having episodes with 1–3 month intervals
Severe-type- subgroup with severe course of RAS, defined as with lesions almost constantly present
A type- subgroup with 1–3 lesions per episode
B type- subgroup with more than 3 lesions per episode

ISSN: 1472-6831