Table 5.
Wave characteristics by PMA1
| Group1 <27 weeks (n=8) |
Group 2 27–29 weeks (n=16) |
Group 3 29–31 weeks (n=21) |
Group 4 >31 weeks (n=19) |
|
|---|---|---|---|---|
| SDW2, M3 (range) | 191 (112–315) | 167 (57–367) | 131 (24–350) | 101 (18–254) |
| DB4, M (range) | 61 (25–74) | 47 (5–94) | 34 (0–119) | 20 (3–70) |
| TB5, M (range) | 21 (9–36) | 7 (0–41) | 1 (0–9) | 1 (0–6) |
| IBI6 %, m (SD) | 38 (14) | 35 (9) | 33 (12) | 24 (9) |
| Max. IBI Length, seconds, m (SD) | 31 (17) | 41 (51) | 24 (10) | 17 (8) |
1
Post-menstrual age.
2
Smooth delta wave.
3
m denotes mean, M denotes median.
4
Delta brush.
5
Theta burst.
6
Percentage of recording time between bursts.