Table 5.

Average values of metal concentrations of selected percentage of CERAD immediate recall scores (±5%) ¹.

Percentage of CERAD Immediate Recall Score: Estimated Value Based on Model	Estimated CERAD Immediate Recall Score	Selenium (µg/L)	Lead (µg/L)	Cadmium (µg/L)	Methylmercury (µg/L)
Aged 60–69 years old, (n = 984)
10%	17.03	190.31	29.72	0.60	1.91
25%	18.09	190.44	18.90	0.69	1.69
50%	19.54	198.67	17.38	0.58	2.06
75%	20.88	206.39	15.18	0.49	2.28
90%	22.00	191.83	15.54	0.51	2.10
Aged 70–89 years old, (n = 851)
10%	14.69	184.47	25.22	0.65	1.28
25%	15.98	190.75	23.57	0.65	2.17
50%	17.46	196.98	17.83	0.49	1.77
75%	18.83	200.66	16.96	0.49	2.10
90%	19.80	198.97	15.30	0.51	1.86

¹ Models included log-transformations of metal concentrations to fit the data. Analyses were adjusted for sex, race/ethnicity, education level, depression, diabetes, cigarette smoking, and alcohol consumption. All parameters and their p-values are provided in Table 4. Percentile data represent average estimated CERAD immediate recall score at each percentile listed (±5%) to provide stable estimates. Metal concentrations are average estimated values for persons with CERAD immediate recall scores.