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1.
Clin Exp Rheumatol ; 19(4 Suppl 23): S60-5, 2001.
Article in English | MEDLINE | ID: mdl-11510333

ABSTRACT

We report the results of the cross-cultural adaptation and validation into the French language of two health status instruments. The Childhood Health Assessment Questionnaire (CHAQ) is a disease specific instrument that measures functional ability in daily living activities in children with juvenile idiopathic arthritis (JIA). The Child Health Questionnaire (CHQ) is a generic health related quality of life instrument designed to capture the physical and psychosocial well-being of children independently from the underlying disease. Five hundred children were enrolled including 306 patients with JIA classified into systemic (23%), polyarticular (22%), extended oligoarticular (25%), and persistent oligoarticular (30%) subtypes, and 194 healthy children. Both instruments were reliable with intra-class correlation (ICC) coefficients for the test-retest procedure of 0.91 for the CHAQ, and 0.87 and 0.89 for the physical and psychosocial summary scores of CHQ, respectively. Agreement between parents and children evaluated for the CHAQ was high with an ICC of 0.89 for the disability index; weighted kappa coefficients for the 8 domains ranged from 0.61 to 0.72. Convergent validity was demonstrated by significant correlations with the JIA core set of variables (physician and parent global assessment, scores for active joints and joints with limited range of motion, erythrocyte sedimentation rate) for both instruments. Both CHAQ and CHQ discriminated between healthy and JIA children, but only the disease specific CHAQ questionnaire discriminated clearly between the 4 JIA subtypes. In conclusion, the French versions of the CHAQ and the CHQ are reliable, and valid health assessment questionnaires to be used in children suffering from JIA.


Subject(s)
Arthritis, Juvenile/diagnosis , Cross-Cultural Comparison , Health Status , Surveys and Questionnaires , Adolescent , Child , Cultural Characteristics , Disability Evaluation , Female , France , Humans , Language , Male , Psychometrics , Quality of Life , Reproducibility of Results
2.
Clin Exp Rheumatol ; 18(6): 683-90, 2000.
Article in English | MEDLINE | ID: mdl-11138329

ABSTRACT

OBJECTIVES: To assess the occurrence of bone loss in rheumatoid arthritis (RA) and to determine the factors influencing bone loss (particularly the usefulness of bone turnover markers) over an 18-month period. METHODS: A total of 51 patients were studied, 6 men and 45 females (of whom 35 were menopausal). Their mean age was 56 +/- 10 years and the mean RA duration was 12 +/- 10 years. Twenty-eight (55%) were receiving corticosteroids (10 mg/day for a mean duration of 6 +/- 5 years). Several clinical and biological parameters reflecting disease activity or severity were recorded both at the 0 and 18-month investigations. Bone turnover was assessed at baseline by measuring the serum levels of 4 biological markers. Three of them reflected bone formation, i.e., procollagen type I C-terminal propepeptide (PICP), procollagen type I N-terminal propeptide (PINP) and osteocalcin (OC). The fourth, procollagen type I-C terminal telopeptide (ICTP), reflected bone resorption. Bone mineral density (BMD) was measured by dual energy X-ray absorptiometry both at the lumbar spine (LS) and femoral neck (FN) at baseline and 18 months later. RESULTS: Bone loss occurred both at the LS: 2.1%, [95% CI: 0.8%-3.4%, P < 0.005] and femoral neck: 3.1%, [95% CI: 1.1%-5.1%, P < 0.005]. Bone loss was markedly increased for postmenopausal women at the FN: 5.3% [95% CI: 2.9%-7.6%, P < 0.005]. Bone loss was not statistically significantly different between users and non-users of steroids. Bone loss at the LS was significantly correlated with both osteocalcin (r = 0.51, P < 0.01) and ICTP levels (r = 0.32, P < 0.05). FN bone loss was correlated with the osteocalcin level only (r = 0.34, P < 0.05). Fast losers (bone loss at the LS above the median) had higher OC (P < 0.01) and ESR (P < 0.05) levels at baseline as compared with slow losers (bone loss at the LS below the median). CONCLUSION: Bone loss occurs in RA particularly at the FN and seems to be influenced by increased bone turnover and high levels of inflammation.


Subject(s)
Arthritis, Rheumatoid/complications , Bone Resorption/etiology , Adrenal Cortex Hormones/therapeutic use , Arthritis, Rheumatoid/diagnostic imaging , Arthritis, Rheumatoid/drug therapy , Arthritis, Rheumatoid/metabolism , Blood Sedimentation , Bone Density , Bone Resorption/diagnostic imaging , Female , Femur Neck/diagnostic imaging , Humans , Longitudinal Studies , Lumbar Vertebrae/diagnostic imaging , Male , Middle Aged , Osteocalcin/blood , Osteoporosis, Postmenopausal/complications , Osteoporosis, Postmenopausal/diagnostic imaging , Peptide Fragments/blood , Procollagen/blood , Radiography , Spine/diagnostic imaging , Time Factors
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