Skip to main content
. Author manuscript; available in PMC: 2017 Sep 5.
Published in final edited form as: J Biol Rhythms. 2017 Jan 16;32(1):64–74. doi: 10.1177/0748730416685451

Table 2.

Frequency of each cycle at each age shows a trend for a decreased number of cycles at later ages.

Age 1st Cycle 2nd Cycle 3rd Cycle 4th Cycle 5th Cycle 6th Cycle 7th Cycle 8th Cycle 9th Cycle 10th Cycle
2Y 8 (3) 8 (0) 8 (0) 8 (0) 8 (0) 8 (0) 6 (0) 4 (0) 3 (0) 1 (0)
3Y 8 (4) 8 (1) 8 (0) 8 (0) 8 (0) 8 (0) 7 (0) 4 (0) 1 (0) 0 (0)
5Y 8 (6) 8 (2) 8 (0) 8 (0) 8 (0) 8 (0) 6 (0) 1 (0) 0 (0) 0 (0)

The probability of the given distribution across age groups of 9th cycles is p = 0.19; the probability of the given distribution across age groups of 8th cycles is p = 0.09. The occurrence of skipped REM sleep episodes for each cycle is denoted by the number in parentheses and shows skipped REM sleep episodes occurring in the 1st and 2nd cycles.