Changes in the Oral-Health-Related Quality of Life of Thai patients with oral lichen planus after topical corticosteroid treatment: a 1-month longitudinal study

Table 4 Comparison of the differences in clinical and patient-based outcomes between groups of patients who reported up to moderately improved and greatly improved (N = 72)

Differences	Differences^a Median ± IQR (range)		P value^c
Differences	Up to moderately improved ^b (N = 33)	Greatly improved (N = 39)	P value^c
Highest Thongprasom sign score	1.0 ± 0.5 (0–3)	1.0 ± 1.0 (0–3)	0.528
Total Thongprasom sign score	4.0 ± 6.0 (0–12)	4.0 ± 7.0 (-1–16)	0.820
Pain score	4.0 ± 3.5 (1–10)	4.0 ± 4.0 (1–10)	0.233
Total OIDP percentage score	12.5 ± 8.5 (1.5–31.5)	15.0 ± 15.0 (4.5–47)	0.079

^a Subtracted the follow-up data from baseline data and sharing with each n. Negative values represented a worsened effect, whereas positive values represented an improved effect
^b Including 1 no changes, 4 minimally improved and 28 moderately improved patients
^c Statistically analyzed with Mann-Whitney U test

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