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Table 1 Descriptive characteristics of patients for both examination time-points

From: Optical spectral transmission to assess glucocorticoid therapy response in patients with arthritis: a longitudinal follow-up comparison with joint ultrasound

Patient characteristics

Time-point(a)

Time-point(b)

Significance(p)

Patient count (n)

54

54

-

Age (years)b

62.91 ± 12.68

-

-

Disease duration (years)†

3 (0.5–3.0)

-

-

BMI (kg/m2)b

28.40 ± 4.70

-

-

Gender (female), %

66.7%

-

-

Handsize, %

67.71 ± 7.94

-

-

ESR, mm/ha

29.0 (17.25–50.00)

20.00 (13.50–34.25)

0.001**

DAS28a

5.12 (4.33–6.10)

3.85 (3.40–4.82)

<0.001***

PDUS†a

8.75 (5.38–16.25)

4.75 (2.38–8.63)

<0.001***

GSUSa

6.00 (3.00–8.00)

3 (2.00–3.00)

<0.001***

OSTb

18.33 ± 4.69

16.43 ± 4.86

<0.001***

TJCa

6.00 (2.00–12.00)

2.00 (0.00–5.25)

<0.001***

SJCa

6.00 (3.00–9.00)

4.00 (2.00–6.00)

<0.001***

VASa

67.5 (48.75–76.25)

40.00 (30.00–51.25)

<0.001***

Tenosynovitis, %

66.7%

33.3%

<0.001***

Arterial hypertension (yes), %

48.1%

-

-

Diabetes mellitus II (yes), %

9.3%

-

-

Nicotine (yes), %

24.1%

-

-

  1. aData are presented as median (interquartile range) as not normally distributed
  2. bData are presented as mean (± SD) as normally distributed
  3. t-test (normal distribution) and Mann-Whitney U test (skewed distribution) were used to investigate the relationships between OST and qualitative patient characteristics
  4. BMI Body mass index, ESR Erythrocyte sedimentation rate, DAS28 Disease activity score 28, PDUS Power Doppler ultrasound score, GSUS Grayscale ultrasound score, OST Optical spectral transmission, RF Rheumatoid factor, TJC Tender joint count, SJC Swollen joint count, VAS Visual analog scale
  5. **p < 0.01, ***p < 0.001