Table 3 Correlation between the TL and clinical parameters at the First Boolean remission and between the TL and mean value of the parameters thereafter.

From: The impact of time length to Boolean remission for tight disease activity control after acquisition in rheumatoid arthritis patients

Parameters

At the first Boolean remission

After the first Boolean remission

Coefficients (95% CI)

p-value

Coefficients (95% CI)

p-value

SDAI

0.001 (− 0.005 to 0.008)

0.76

0.041 (0.023 to 0.059)

< 0.001

HAQ-DI

0.009 (0.005 to 0.013)

< 0.001

0.009 (0.006 to 0.013)

< 0.001

PS-VAS

0.204 (0.061 to 0.348)

< 0.01

0.207 (0.100 to 0.317)

< 0.001

SHS

1.053 (0.670 to 1.436)

< 0.001

1.583 (1.023 to 2.144)

< 0.001

QOLS

− 0.002 (− 0.003 to − 0.001)

< 0.001

− 0.002 (− 0.003 to − 0.001)

< 0.001

  1. TL time length until the first Boolean remission, SDAI simplified disease activity index, HAQ-DI Health Assessment Questionnaire Disability Index, PS-VAS pain score using visual analog scale, SHS Sharp/van der Heijde Score, QOLS quality of life score.
  2. Statistical analyses were performed using univariate linear regression analysis as the time span was defined as independent factor and the parameters were defined as dependent factors.
  3. Statistically significant columns are shown in bold style.
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