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Table 2 Age-stratified relationships between serum urate quartiles and PHQ-9 scores

From: Low levels of serum urate are associated with a higher prevalence of depression in older adults: a nationwide cross-sectional study in Korea

  Young men (19–39 years,n = 712) Middle-aged men (40–59 years,n = 879) Older men (60 years and older,n = 710) Men (n = 2301)
Mean SE F p Mean SE F p Mean SE F p Mean SE F p
1st quartile 6.47 1.33 0.029 0.865 3.76 0.44 0.071 0.790 4.02 0.54 5.448 0.020 4.44 0.46 0.169 0.681
2nd quartile 6.12 1.28 4.00 0.48 3.75 0.54 4.26 0.44
3rd quartile 6.37 1.28 3.68 0.45 3.65 0.52 4.27 0.43
4th quartile 6.45 1.32 3.78 0.52 3.23 0.53 4.35 0.46
  Young women (19–39 years,n = 938) Middle-aged women (40–59 years,n = 1184) Older women (60 years and older,n = 909) Women (n = 3031)
Mean SE F p Mean SE F p Mean SE F p Mean SE F p
1st quartile 5.75 0.85 0.867 0.352 6.24 0.58 0.087 0.764 7.14 0.89 3.928 0.048 6.48 0.41 0.180 0.894
2nd quartile 6.43 0.86 6.21 0.56 6.78 0.86 6.68 0.39
3rd quartile 6.55 0.90 5.93 0.57 6.69 0.86 6.60 0.40
4th quartile 6.03 0.83 6.25 0.67 6.29 0.82 6.48 0.42
  1. F and p values are calculated for linear trend
  2. PHQ Patient Health Questionnaire, SE standard error