Author | Year | Country | Study design | Gender (RA/control) | Age (years) | Assessment of BMI | Sample size (RA/control) | Diagnosis criteria | Rates of obesity (RA/control) | BMI categories | Adjustment for covariates |
---|---|---|---|---|---|---|---|---|---|---|---|
Voigt et al. [21] | 1994 | USA | Case-Control Study | Female | 18-64 | Self-reported | 349/1,456 | Diagnostic Criteria 1958e | 29.5%/24.8% | 12.94-20.43, | Age, smoking status |
Female | 20.44-22.51, | ||||||||||
22.52-25.82, | |||||||||||
25.83-52.86 | |||||||||||
Symmons et al. [22] | 1997 | UK | Case-Control Study | Mixed | 18-70 | Self-reported | 90/93 | ACR 1987f | 17.6%/7.7% | <20, 20-24.9, 25-29.9, >30 | Smoking status, social class |
Mixed | |||||||||||
Uhlig et al. [12] | 1999 | Norway | Case-Control Study | Mixed | 20-79 | Self-reported | 347/5,725 | ACR 1987 | 7.8%/4.6% | <25, 25-29.9, >30 | Age, sex, marital status, employment category, formal education, current smoking status |
Mixed | |||||||||||
Pedersen et al. [23] | 2006 | Denmark | Case-Control Study | Mixedb | 18-65 | Self-reported | 505/752 | ACR 1987 | 9.3%/6.8% | <18.5, 18.5-25, 25-30, >30 | Birth year, year of RA diagnosis, gender |
Mixed | |||||||||||
Rodriguez et al. [13] | 2009 | UK | Case-Control Study | Mixed | 20-79 | Medical Examination | 559/4,234 | NA | 12.1%/12.5% | <20, 20-24.9, 25-30, >30 | Age, gender, referrals, smoking status, alcohol consumption, pregnancy status |
Mixed | |||||||||||
Wesley et al. [14] | 2013 | Sweden | Case-Control Study | Mixed Mixed | 18-70 | Self-reported | 2,748/3,444 | ACR 1987 | 13.7%/13.0% | <25, 25-30, >30 | Smoking status, alcohol consumption, education level, menopausal status, physical activity, parity, fatty fish consumption |
Crowson et al. [24] | 2013 | USA | Case-Control Study | Mixed | 55.9 ± 15.7 | Medical Examination | 813/813 | ACR 1987 | 40.3%/35.7% | <30, >30 | Age, gender, smoking status |
Mixed | |||||||||||
Cerhan et al. [11] | 2002 | USA | Cohort Study | Female Female | 55-69 | Self-reported | 31,336c | ACR 1987 | 25.9%d | <23.4, 23.4-25.8, 25.9-29.2, >29.2 | Age |
Lu et al.a [27] | 2014 | USA | Cohort Study | Female | 25-55 | Medical Examination | 218,623 | ACR 1987 | 27.8%d | 18.5-24.9, 25-29.9, >30 | Age, community median income, smoking status, alcohol consumption, physical activity, parity, breastfeeding status, postmenopausal use Postmenopausal Hormone use. |
Female | |||||||||||
Harpsoe et al. [26] | 2014 | Denmark | Cohort Study | Female | 27.4- 33.3 | Self-reported | 75,088 | ICD Code | - | <18.5,18.5-25, 25-30, >30 | Smoking status, alcohol consumption, parity, socio-occupational status |
Female | |||||||||||
Lahiri et al. [25] | 2014 | UK | Cohort Study | Mixed Mixed | 40-79 | Self-reported | 25,271 | ACR1987 | - | <25, 25-30, >30 | Age, gender, smoking status, breastfeeding status, alcohol consumption |