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Table 4 Associations between obesity measures and non-metabolic risk factors in African black and Caucasian women with RA

From: Obesity and carotid atherosclerosis in African black and Caucasian women with established rheumatoid arthritis: a cross-sectional study

Non-metabolic risk factor Obesity measure
  BMI Waist Waist÷height Log waist÷hip
  Black Caucasian Interaction Black Caucasian Interaction Black Caucasian Interaction Black Caucasian Interaction
    P -value    P -value    P -value    P -value
Age -0.09 -0.10 0.9 -0.10 -0.01 0.4 -0.04 0.10 0.6 -0.09 0.38 b 0.004
Public healthcare -0.05 0.07 0.4 -0.08 -0.01 0.3 -0.04 0.13 0.4 -0.07 -0.04 0.5
L py history smoking -0.16 0.22 a 0.03 -0.14 0.27 a 0.05 -0.15 0.25 a 0.048 0.08 0.18 0.6
Alcohol use 0.07 0.05 0.08 0.06 0.07 0.04 0.03 0.06 0.08 -0.08 -0.02 0.5
Exercise -0.00 -0.07 0.7 0.05 -0.12 0.2 0.06 -0.16 0.1 -0.03 -0.04 0.9
DAS28 -0.06 0.19 0.2 0.03 0.11 0.5 0.03 0.16 0.4 -0.04 0.07 0.4
L deformed joints -0.25 a -0.15 0.2 -0.32 b -0.06 0.01 -0.28 b -0.08 0.036 -0.11 -0.10 0.2
Prednisone use -0.10 -0.07 0.6 -0.15 0.02 0.2 -0.16 -0.05 0.5 -0.09 0.05 0.4
Hypothyroidism -0.11 0.16 0.1 0.04 0.08 0.9 -0.04 0.11 0.4 0.05 0.03 0.7
HRT 0.04 -0.06 0.6 -0.02 -0.07 0.8 -0.04 -0.07 0.9 -0.09 -0.04 0.5
Anti-HTA use 0.15 0.35 b 0.5 0.23 a 0.30 0.5 0.19 0.29 b 0.6 0.00 0.23 a 0.039
Statin use 0.10 0.30 b 0.4 0.10 0.29 b 0.8 0.05 0.28 b 0.2 0.06 0.06 0.8
Ezetimibe use ... 0.17 ... ... 0.08 ... ... 0.11 ... ... 0.02 ...
OHA use 0.27 b 0.25 a 0.5 0.31 b 0.25 a 0.5 0.29 b 0.26 a 0.7 0.00 0.14 0.3
Insulin therapy 0.25 b -0.05 0.06 0.26 a -0.03 0.07 0.30 b -0.05 0.042 0.09 0.03 0.6
  1. Results are expressed as standardized regression coefficients in univariate analysis for the relationships between obesity measures and age and public healthcare and in age and public healthcare adjusted analysis for the associations between obesity measures and the other non-metabolic risk factor measures. Significant associations are shown in bold. aP-value < 0.05, bP-value < 0.01. BMI, body mass index; DAS28, Disease Activity Score in 28 joints; HRT, hormone replacement therapy; HTA, hypertensive agent; Log, logarithmically transformed; L, logarithmically transformed; OHA, oral hypoglycemic agent; py, pack year.