- ABT
abatacept
- ACR
American College of Rheumatology
- ADA
adalimumab
- ARCTIC
Aiming for Remission in Rheumatoid Arthritis
- bDMARD
biological disease-modifying anti-rheumatic drug
- BSR
British Society for Rheumatology
- CDAI
Clinical Disease Activity Index
- cDMARD
conventional disease-modifying anti-rheumatic drug
- CDSR
Cochrane Database of Systematic Reviews
- CE
clinical examination
- CENTRAL
Cochrane Central Register of Controlled Trials
- CI
confidence interval
- CINAHL
Cumulative Index to Nursing and Allied Health Literature
- CRP
C-reactive protein
- CT
computerised axial tomography
- CTZ
certolizumab pegol
- CXCL13
chemokine (C-X-C motif) ligand 13
- DARE
Database of Abstracts of Reviews of Effects
- DAS
Disease Activity Score
- DAS28
Disease Activity Score 28 joints
- DAS28-CRP
Disease Activity Score 28 joints using C-reactive protein
- DAS28-ESR
Disease Activity Score 28 joints using erythrocyte sedimentation rate
- DAS44
Disease Activity Score 44 joints
- DMARD
disease-modifying anti-rheumatic drug
- ESR
erythrocyte sedimentation rate
- ETN
etanercept
- EULAR
European League Against Rheumatism
- FN
false negative
- FP
false positive
- GATE
Generic Appraisal Tool for Epidemiology
- GOL
golimumab
- GSUS
grey-scale ultrasound
- HAQ
Health Assessment Questionnaire
- HAQ-DI
Health Assessment Questionnaire Disability Index
- HCQ
hydroxychloroquine
- HTA
Health Technology Assessment
- ICER
incremental cost-effectiveness ratio
- IFX
infliximab
- MCP
metacarpophalangeal
- MRI
magnetic resonance imaging
- MTP
metatarsophalangeal
- mTSS
modified total Sharp score
- MTX
methotrexate
- NHS EED
NHS Economic Evaluation Database
- NICE
National Institute for Health and Care Excellence
- NIHR
National Institute for Health Research
- NPV
negative predictive value
- NRAS
National Rheumatoid Arthritis Society
- NSAID
non-steroidal anti-inflammatory drug
- OMERACT
Outcome Measures in Rheumatoid Arthritis Clinical Trials
- OR
odds ratio
- PDUS
power Doppler ultrasound
- PET
positron emission tomography
- PIP
proximal interphalangeal
- PPV
positive predictive value
- QALY
quality-adjusted life-year
- QUADAS
Quality Assessment of Diagnostic Accuracy Studies
- QUIPS
Quality in Prognosis Studies
- RA
rheumatoid arthritis
- RAMRIS
rheumatoid arthritis magnetic resonance imaging scoring system
- RAQoL
Rheumatoid Arthritis Quality of Life
- RCT
randomised controlled trial
- RTX
rituximab
- ScHARR
School of Health and Related Research
- SDAI
Simplified Disease Activity Index
- SJC
swollen joint count
- SRM
standardised response mean
- SSZ
sulfasalazine
- TA
technology appraisal
- TaSER
Targeting Synovitis in Early Rheumatoid Arthritis
- TCZ
tocilizumab
- TJC
tender joint count
- TN
true negative
- TNFi
tumour necrosis factor inhibitor
- TP
true positive
- TSS
total Sharp score
- TTT
treat to target
- TURA
Targeted Ultrasound in Rheumatoid Arthritis
- US
ultrasound
- US7
ultrasound 7 score
- USDCF
Ultrasound Doppler colour fraction
- VAS
visual analogue scale
- vdHSS
van der Heijde-modified total Sharp score
