Table 2.

Association of sociodemographic variables with the abnormal eGFR result rate (eGFR < 60 ml/min/1.73m²)

Sociodemographic Variables	Risk Ratio (RR)	95% CI	Chi-Square	P-value
Female	1.11	1.09–1.14	88.46	<.0001
Malea	1.00	Reference
Age < 20 years	0.01	0.004–0.01	225.78	<.0001
Age 20–29 years	0.02	0.018–0.02	2766.70	<.0001
Age 30–39 years	0.04	0.03–0.04	5802.60	<.0001
Age 40–49 years	0.08	0.07–0.08	8742.50	<.0001
Age 50–59 years	0.15	0.15–0.16	10088.00	<.0001
Age 60–69 years	0.34	0.33–0.35	4902.60	<.0001
Age ≥ 70 yearsb	1.00	Reference
Recent immigrant (within 5 years)	1.03	0.82–1.29	0.05	0.8213
Aboriginal – First Nations	1.09	0.78–1.51	0.24	0.6221
Aboriginal – Métis	0.90	0.48–1.69	0.10	0.7463
Visible minority Chinese	0.73	0.60–0.88	10.72	0.0011
Visible minority South Asian	0.67	0.59–0.76	35.41	<.0001
Visible minority Black	1.15	0.85–1.55	0.84	0.3608
Median household income ($100,000 CAD)	0.88	0.85–0.92	38.94	<.0001
Employment rate	0.89	0.77–1.03	2.39	0.1222
At least some university education	0.88	0.77–1.01	3.36	0.0670

^a Males were used as a reference group for females

^b Age group ≥70 years of age were used as a reference group for all other age groups