Table 2.
Alberta Infant Motor Scale (AIMS) positional and total scores differences by groups at four different ages (n = 252).
| 0–3 m | 4–6 m | 7–9 m | 10 m ≤ | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | Mean (Min–Max) |
p | n | Mean (Min–Max) |
p | n | Mean (Min–Max) |
p | n | Mean (Min–Max) |
p | |
| Prone | ||||||||||||
| HFI | 14 | 2.5 (2–5) | 29 | 7 (4–21) | 32 | 15 (6–21) | 22 | 21 (21–21) | ||||
| HPI | 24 | 3 (1–5) | 0.988 | 36 | 6 (2–18) a,b | 0.000 * | 33 | 12 (6–21) a | 0.005 * | 12 | 21 (19–21) | 0.205 |
| PIBI | 9 | 2 (1–7) | 22 | 5 (1–10) c | 13 | 10 (2–14) c | 6 | 21 (15–21) | ||||
| Supine | ||||||||||||
| HFI | 14 | 3 (3–5) | 29 | 9 (3–9) | 32 | 9 (9–9) | 22 | 9 (9–9) | ||||
| HPI | 24 | 3 (2–4) | 0.149 | 36 | 5 (2–9) b | 0.000 * | 33 | 9 (4–9) b | 0.034 | 12 | 9 (9–9) | 1.000 |
| PIBI | 9 | 3 (2–9) | 22 | 4 (2–9) c | 13 | 9 (4–9) c | 6 | 9 (9–9) | ||||
| Sitting | ||||||||||||
| HFI | 14 | 1 (1–2) | 29 | 4 (2–12) | 32 | 10 (5–12) | 22 | 12 (12–12) | ||||
| HPI | 24 | 1 (1–2) | 0.645 | 36 | 3 (1–10) b | 0.000 * | 33 | 9 (3–12) a,b | 0.000 * | 12 | 12 (12–12) | 0.059 |
| PIBI | 9 | 1 (1–3) | 22 | 2 (1–6) c | 13 | 5 (0–12) c | 6 | 12 (6–12) | ||||
| Standing | ||||||||||||
| HFI | 14 | 2 (2–3) | 29 | 3 (2–10) | 32 | 3 (3–10) | 22 | 11 (8–16) | ||||
| HPI | 24 | 2 (1–2) | 0.062 | 36 | 2 (2–6) b | 0.000 * | 33 | 3 (2–10) a,b | 0.000 * | 12 | 10 (4–16) b | 0.135 |
| PIBI | 9 | 2 (1–2) | 22 | 2 (2–3) c | 13 | 3 (1–3) c | 6 | 10.5 (2–14) c | ||||
| Total score | ||||||||||||
| HFI | 14 | 9 (8–13) | 29 | 22 (11–52) | 32 | 39 (29–52) | 22 | 53 (50–58) | ||||
| HPI | 24 | 9 (6–25) | 0.594 | 36 | 17 (7–43) a,b | 0.000 * | 33 | 33 (16–52) a,b | 0.000 * | 12 | 51.5 (46–58) b | 0.093 |
| PIBI | 9 | 8 (6–21) | 22 | 14 (6–26) c | 13 | 27 (7–36) c | 6 | 52.5 (32–56) | ||||
* p < 0.05, mean (range: min–max), HPI: healthy preterm infants, PIBI: preterm infants with brain injury, HFI: healthy full-term infant, data were compared using Kruskal–Wallis test, followed by post hoc comparisons by Mann–Whitney U-test. a HPI vs. PIBI. b HPI vs. HFI. c PIBI vs. HFI.