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Table 5 Differences in serum uric acid levels (mg/dl) among women according to age categoriesa

From: Menopause, postmenopausal hormone use and serum uric acid levels in US women – The Third National Health and Nutrition Examination Survey

Age category (years) 20 to 29 30 to 39 40 to 49 50 to 59 60 to 69 ≥ 70 P value for trend
Participants, n 1627 1637 1203 904 987 1304 -
Unadjusted difference (95% CI) 0 (referent) 0.20 (-0.12 to 0.16) 0.12 (-0.04 to 0.28) 0.60 (0.44 to 0.75) 0.84 (0.69 to 1.00) 1.03 (0.90 to 1.16) < 0.001
Menopause-adjusted difference (95% CI) 0 (referent) 0.00 (-0.14 to 0.14) 0.02 (-0.14 to 0.18) 0.27 (0.10 to 0.44) 0.45 (0.23 to 0.67) 0.62 (0.43 to 0.81) < 0.001
Menopause-GFR Adjusted difference (95% CI) 0 (referent) -0.09 (-0.25 to -0.08) -0.13 (-0.35 to -0.10) 0.07 (-0.18 to 0.32) 0.17 (-0.18 to 0.52) 0.27 (-0.10 to 0.64) 0.19
Multivariate differenceb (95% CI) 0 (referent) -0.23 (-0.37 to -0.08) -0.33 (-0.53 to -0.14) -0.22 (-0.44 to 0.00) -0.16 (-0.46 to 0.14) -0.06 (-0.39 to 0.27) 0.54
Multivariate differencec (95% CI) 0 (referent) -0.22 (-0.37 to -0.08) -0.34 (-0.53 to -0.16) -0.22 (-0.45 to 0.00) -0.15 (-0.45 to 0.14) -0.03 (-0.36 to 0.30) 0.66
  1. aUric acid levels are reported in milligrams per decilitre (mg/dl); to convert to μm/l, multiply by 59.48. Data are presented incorporating sample weights and adjusted for clusters and strata of the complex sample design of NHANES III. bAdjusted for age, smoking status, body mass index, use of postmenopausal hormone, diuretics, beta-blockers, allopurinol and uricosuric agents, hypertension and glomerular filtration rate. cAdditionally adjusted for intake of alcohol, total meats, seafood, dairy foods, sugar-sweetened soft drinks, coffee and total energy. CI, confidence interval.