Table 1 Participants’ characteristics.

From: Clinical utility of maximum blink interval measured by smartphone application DryEyeRhythm to support dry eye disease diagnosis

Characteristics

Non-DED

DED

P value

Total

n = 32

n = 51

n = 83

Age, year ± SD

61.4 ± 14.9

62.5 ± 12.0

0.855

62.0 ± 13.1

Sex, female (%)

31 (96.9)

47 (92.2)

0.379

78 (94.0)

J-OSDI, 0–100 ± SD

17.9 ± 21.4

36.0 ± 16.9

 < 0.001

29.1 ± 20.6

TFBUT, s ± SD

4.5 ± 2.6

2.6 ± 1.0

 < 0.001

3.4 ± 2.0

CFS, 0–9 ± SD

2.7 ± 2.5

3.1 ± 2.5

0.282

2.9 ± 2.5

Schirmer I, mm ± SD

8.6 ± 7.6

7.2 ± 7.9

0.235

7.7 ± 7.7

Slit-lamp-based MBI, s ± SD

12.4 ± 7.0

9.6 ± 6.6

0.035

10.7 ± 6.7

  1. P values were determined using a two-tailed Student’s t test for continuous variables and χ2 test for categorical variables. DED, dry eye disease; SD, standard deviation; J-OSDI, Japanese version of the Ocular Surface Disease Index; TFBUT, tear film breakup time; CFS, corneal fluorescein staining; MBI, maximum blink interval; iOS, iPhone operating system.
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