Table 1.

Baseline characteristics between CKDcohort and non-CKD cohort

	non-CKD N = 74098		CKD N = 37049
	n	%	n	%	P value*
Sex					1.00
Women	33948	45.8	16974	45.8
Men	40150	54.2	20075	54.2
Age group (years)					1.00
20–39	10710	14.5	5355	14.5
40–64	34742	46.9	17371	46.9
≥65	28646	38.7	14323	38.7
Mean (SD) (years)	57.5	(15.8)	58.3	(16.1)	<0.0001
Co-morbidities
Hypertension	23702	32.0	21731	58.7	<0.0001*
Diabetes mellitus	6367	8.59	11517	31.1	<0.0001*
Ischemic heart disease	12896	17.4	12056	32.5	<0.0001*
Hyperlipidemia	7350	9.92	9762	26.4	<0.0001*
Tobacco use disorder	138	0.19	135	0.36	<0.0001*
Alcoholism	294	0.40	335	0.90	<0.0001*
Obesity	398	0.54	401	1.08	<0.0001*
Atrial fibrillation	638	0.86	740	2.00	<0.0001*
Parkinson's disease	790	1.07	680	1.84	<0.0001*
Cerebrovascular disease	8701	11.7	7876	21.3	<0.0001*
Major depressive disorder	852	1.15	652	1.76	<0.0001*
Elevated C-reactive protein	--		--		--
Medication
Use of benzodiazepine	37902	51.2	25284	68.2	<0.0001*
Use of aspirin	6992	9.44	5822	15.7	<0.0001*
Use of other NSAIDs	63174	85.3	34698	93.7	<0.0001*
Use of COX2	14584	19.7	10901	29.4	<0.0001*

^*Chi-square test comparing patients with and without CKD.