Table 3:

Comparison of Cho/NAA among different age groups

Age Groups (yr)Median/QuartileNo.P Value
0–51.01/0.84–1.4320<.001,a <.001b
6–200.63/0.60–0.6715.005,c <.001d
21–500.70/0.65–0.7821.015e
Older than 500.81/0.72–0.8622.001f
  • a Comparison between 0 to 5- and 6 to 20-year-old subjects.

  • b Comparison between 0 to 5- and 21 to 50-year-old subjects.

  • c Comparison between 6 to 20- and 21 to 50-year-old subjects.

  • d Comparison between 6 to 20- and older than 50-year-old subjects.

  • e Comparison between 21 to 50- and older than 50-year-old subjects.

  • f Comparison between 0 to 5- and older than 50-year-old subjects.