Effect of Narrow Band Ultraviolet B Therapy versus Methotrexate on Serum Levels of Interleukin-17 and Interleukin-23 in Egyptian Patients with Severe Psoriasis

Table 1

Comparison between serum levels of interleukin-17 and Interleukin-23, before and after narrow band UVB among groups I and II patients.

Interleukins	Group I (number = 15)			Group II (number = 15)
	Before treatment	After treatment	𝑃 value	Before treatment	After treatment	𝑃 value
IL-17 ng/L	2.0±1.5	1.3±1.2	0.041	2.2±0.6	1.1±0.5	<0.001^†
IL-23 ng/L	499.1±207.1	281.7±214.1	<0.001^†	440.9±193.8	276.0±179.3	0.022^†

†A significant difference by paired samples 𝑡-test.