Table 2.

Langerhans cell density on in vivo confocal microscopy in the central and peripheral cornea in rheumatological conditions.

	Central Langerhans cell density in patients (cell/mm2)	Central Langerhans cell density in controls (cell/mm2)	Peripheral Langerhans cell density in patients (cell/mm2)	Peripheral Langerhans cell density in patients (cell/mm2)
Systemic lupus erythematosus [45]	43.08 ± 48.67	20.57 ± 21.04	124.78 ± 165.39	78.00 ± 39.51
∗Ankylosing spondylitis [49]	75.50 (51.18–112.6)	14.50 (0.00–35.10)	131.0 (80.33–168.4)	65.50 (46.75–88.00)
Rheumatoid arthritis [52]	68.15 ± 71.27	23.85 ± 33.81	126.8 ± 104.6	69.29 ± 33.26

^∗Figures for ankylosing spondylitis are expressed as median with interquartile range and others as a mean with standard deviation.