Table 2.

Mean± SE, range, and median of Estrone (pg/ml) levels at subset and end time points

Group	Age	Mean Estrone level ± SE	Range of Estrone levels	Median Estrone levels
Young-Vehicle	8 months	52.9±4.74	45.8–61.9	51.00
	12 months	60.33±4.65	48.4–76.8	56.70
Young-VCD	8 months	58.37±2.36	53.9–61.9	59.30
	12 months	50.70±2.51	41.8–63.0	49.5
Middle-Aged- Vehicle	14 months	68.47±7.33	55.0–80.2	70.20
	18 months	60.02±1.80	55.5–66.1	59.35
Middle-Aged- VCD	14 months	65.57±3.50	61.3–72.5	62.90
	18 months	53.19±2.49	43.2–64.6	52.55