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Table 1 Pulmonary function test and videocapillaroscopy abnormalities mean values at baseline, 12 months and 24 months

From: Effects of treatment with rituximab on microcirculation in patients with long-term systemic sclerosis

Variable

Time 0

Time 1

Time 2

p*

FVC (mean %)

65.0

64.0

68.5

0.65

DLco (mean %)

52.3

53.5

60.0

0.06

Giant capillaries (score 0–3)

0.03

0.02

0.01

0.66

Hemorrhages (score 0–3)

0.10

0.06

0.06

> 0.99

Capillary loss (score 0–3)

1.06

1.05

1.32

0.18

Abnormally shaped capillaries (score 0–3)

0.35

0.50

0.58

> 0.99

Architecture (score 0–3)

0.62

0.59

0.79

0.66

MES

2.04

2.17

2.62

0.93

  1. Observation: The non-random sample was small to demonstrate statistical differences. *It was used the Friedman test which is non-parametric statistical test
  2. FVC forced vital capacity, DLCO diffusion capacity of the lung for carbon monoxide, MES microangiopathy evolution score, range 0 (absence of the abnormality) to 3