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Table 4 GRADE for quality of evidence profile

From: Methodological and reporting quality evaluation of meta-analyses on the Chinese herbal preparation Zheng Qing Feng Tong Ning for the treatment of rheumatoid arthritis

Study ID

Outcomes (number of studies)

Risk of bias

Inconsistency

Indirectness.

Imprecision

Publication bias

Quality of evidence

Xu 2008 [20]

NIP (10)

Seriousa

Not serious

Not serious

Not serious

Undetected

Moderate

NRP (4)

Seriousa

Not serious

Not serious

Not serious

Undetected

Moderate

MS (3)

Seriousa

Not serious

Not serious

Not serious

Undetected

Moderate

PJ (3)

Seriousa

Seriousc

Not serious

Not serious

Undetected

Low

ESR (4)

Serious a

Not serious

Not serious

Not serious

Undetected

Moderate

SJ (4)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

GS (3)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

CPR (3)

Serious a

Not serious

Not serious

Seriousd

Undetected

Low

ADEs (4)

Serious a

Not serious

Not serious

Seriousd

Undetected

Low

Qi 2010 [29]

MS (3)

Serious a

Not serious

Not serious

Seriousd

Undetected

Low

SJ (3)

Serious a

Seriousc

Not serious

Seriousd

Undetected

Very low

PJ (2)

Serious a

Not serious

Not serious

Seriousd

Undetected

Low

ESR (2)

Serious a

Not serious

Not serious

Seriousd

Undetected

Low

RF (2)

Serious a

Seriousc

Not serious

Seriousd

Undetected

Very low

Zhang 2012 [30]

ACR (2)

Serious a

Seriousc

Not serious

Not serious

Strongly suspectedb

Very low

PJ (8)

Serious a

Seriousc

Not serious

Not serious

Strongly suspectedb

Very low

SJ (8)

Serious a

Seriousc

Not serious

Not serious

Strongly suspectedb

Very low

ESR (9)

Serious a

Seriousc

Not serious

Not serious

Strongly suspectedb

Very low

CPR (7)

Serious a

Not serious

Not serious

Not serious

Strongly suspectedb

Low

RF (9)

Serious a

Not serious

Not serious

Not serious

Strongly suspectedb

Low

Li 2012 [31]

Total Effect (6)

Serious a

Not serious

Not serious

Not serious

Strongly suspectedb

Low

MS (3)

Serious a

Not serious

Not serious

Seriousd

Strongly suspectedb

Very low

ESR (5)

Serious a

Not serious

Not serious

Not serious

Strongly suspectedb

Low

RF (5)

Serious a

Not serious

Not serious

Not serious

Strongly suspectedb

Low

CRP (8)

Serious a

Not serious

Not serious

Not serious

Strongly suspectedb

Low

Wang 2015 [32]

Total Effect (6)

Serious a

Not serious

Not serious

Not serious

Strongly suspectedb

Low

MS (5)

Serious a

Seriousc

Not serious

Not serious

Strongly suspectedb

Very low

ESR (6)

Serious a

Seriousc

Not serious

Not serious

Strongly suspectedb

Very low

RF (6)

Serious a

Seriousc

Not serious

Not serious

Strongly suspectedb

Very low

CPR (6)

Serious a

Not serious

Not serious

Seriousd

Strongly suspectedb

Very low

ADEs (5)

Serious a

Not serious

Not serious

Not serious

Strongly suspectedb

Low

Chen 2015 [34]

Total Effect of ZQFTN (11)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

RF (8)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

ESR (10)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

CRP (8)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

D MS (6)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

SJC (6)

Serious a

Not serious

Not serious

Not serious

Undetected

Moderate

TGC (7)

Serious a

Not serious

Not serious

Not serious

Undetected

Moderate

ADEs (10)

Serious a

Not serious

Not serious

Not serious

Undetected

Moderate

Li 2016 [33]

Total Effect of ZQFTN (8)

Serious a

Not serious

Not serious

Not serious

Undetected

Moderate

MS (8)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

PJ (8)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

GS (8)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

SJ (8)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

ESR (8)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

RF (8)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

CPR (8)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

AD (8)

Serious a

Not serious

Not serious

Not serious

Undetected

Moderate

Liu 2016 [21]

Clinical efficacy (15)

Serious a

Not serious

Not serious

Not serious

Undetected

Moderate

Publication bias (15)

Serious a

Not serious

Not serious

Not serious

Undetected

Moderate

Subgroup analysis (15)

Serious a

Not serious

Not serious

Not serious

Undetected

Moderate

Sensitivity analysis (15)

Serious a

Not serious

Not serious

Not serious

Undetected

Moderate

Total clinical effective rate in 4 weeks treatment (2)

Serious a

Seriousc

Not serious

Seriousd

Undetected

Very low

MS (12)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

SJ (9)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

GS (6)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

ESR (12)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

CRP (11)

Serious a

Seriousc

Not serious

Not serious

Undetected

Low

PLT (2)

Serious a

Not serious

Not serious

Seriousd

Undetected

Low

DAS28(4)

Serious a

Not serious

Not serious

Not serious

Undetected

Moderate

ADEs (12)

Serious a

Not serious

Not serious

Not serious

Undetected

Moderate

  1. Abbreviations:SIN Sinomenine preparations, NSAIDs Non-steroidal anti-inflammatory drugs, NIP Number of improved patients, NRP Number of rheumatoid-factor-disappeared patients, MS Morning stiffness, PJ Painful joint, SJ Swollen joint, SJC Swollen Joint Count, GS Grip strength, ESR Erythrocyte sedimentation rate, CRP C-reactive protein, AD Adverse effects, JTS Joint tenderness score, AI Articular index, ZQFTN Zhengqing Fengtongning release tablets, MTX Methotrexate, DMS Duration of morning stiffness, TGC Tender Joint Count, ADEs Adverse Effects, PLT Blood platelet, DAS28 Disease activity score for rheumatoid arthritis in 28 Joints
  2. a(Unclear random sequence generation, allocation concealment blinding not done in all studies)
  3. b(Incomplete retrieval for unpublished studies and gray literature, evidence for publication bias was underpowered)
  4. c(The overlap degree of different research confidence intervals is poor, and I2 > 50%)
  5. d(Inadequate sample size and the wide 95% (CI))