Dry Eye Indexes Estimated by Keratograph 5M of Systemic Lupus Erythematosus Patients without Secondary Sjögren’s Syndrome Correlate with Lupus Activity

Table 2

Data of TMH, NIKBUT-first, NIKBUT-average, OSDI, and ANA titer according to the severity of SLEDAI.

SLEDAI (score)	0–4 (n = 40)	5–9 (n = 16)	10–14 (n = 11)	≥15 (n = 11)
Age (years)	35 ± 10	36 ± 8	39 ± 13	42 ± 11
Duration (years)	5.07 ± 3.42	6.23 ± 5.53	7.36 ± 5.46	4.86 ± 4.04
TMH (mm)	0.23 ± 0.06	0.22 ± 0.06	0.21 ± 0.03	0.19 ± 0.04
NIKBUT-first (s)	10.43 ± 5.99	8.49 ± 5.94	8.81 ± 7.29	5.56 ± 2.52
NIKBUT-average (s)	13.76 ± 5.45	10.30 ± 6.15	10.23 ± 6.77	7.80 ± 4.53
OSDI (score)	9.04 ± 8.40	18.06 ± 16.86	14.65 ± 10.99	19.38 ± 17.68
ANA titer	1217.50 ± 1360.33	1597.50 ± 1487.17	2476.36 ± 1251.74	1723.64 ± 1443.16

Values are expressed as average ± standard deviation. SLEDAI = Systemic Lupus Erythematosus Disease Activity Index. TMH = tear meniscus height. NIKBUT = noninvasive Keratograph tear breakup time. OSDI = Ocular Surface Disease Index. ANA = antinuclear antibody.