Table 2.

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

	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

F and p values are calculated for linear trend

PHQ Patient Health Questionnaire, SE standard error