Outcome of AGA and SGA infants between the two cohorts
| AGA | ||||
|---|---|---|---|---|
| Total cohort, n=45 | Cohort I, n=23 | Cohort II, n=22 | Cohort I vs II, p value | |
| Corrected age | ||||
| Mean (SD, min-max) | −0.15 (1.0, −3.07 to 2.23) | −0.07 (0.9, −1.64 to 2.23) | −0.22 (1.1, −3.07 to 1.67) | 0.906 |
| Normal, n (%) | 39 (86.7) | 21 (91.3) | 18 (81.8) | 0.444 |
| Mildly delayed, n (%) | 4 (8.9) | 2 (8.7) | 2 (9.1) | |
| Severely delayed, n (%) | 2 (4.4) | 0 | 2 (9.1) | |
| Uncorrected age | ||||
| Mean (SD, min-max) | −1.00 (0.9, −3.07 to 1.11) | −1.04 (0.8, −2.36 to 1.11) | −0.97 (1.0, −3.07 to 0.60) | 0.593 |
| Normal, n (%) | 21 (46.7) | 9 (39.1) | 12 (54.5) | 0.447 |
| Mildly delayed, n (%) | 19 (42.2) | 12 (52.2) | 7 (31.8) | |
| Severely delayed, n (%) | 5 (11.1) | 2 (8.7) | 3 (13.6) | |
| SGA | ||||
|---|---|---|---|---|
| Total cohort, n=56 | Cohort I, n=22 | Cohort II, n=34 | Cohort I vs II, p value | |
| Corrected age | ||||
| Mean (SD, min-max) | −0.54 (1.0, −2.80 to 1.87) | −0.32 (0.7, −1.69 to 0.86) | −0.69 (1.2, −2.80 to 1.87) | 0.129 |
| Normal, n (%) | 36 (64.3) | 17 (77.3) | 19 (55.9) | 0.205 |
| Mildly delayed, n (%) | 17 (30.4) | 5 (22.7) | 12 (35.3) | |
| Severely delayed, n (%) | 3 (5.4) | 0 | 3 (8.8) | |
| Uncorrected age | ||||
| Mean (SD, min-max) | −1.20 (0.9, −3.07 to 0.93) | −1.12 (0.6, −2.26 to −0.02) | −1.26 (1.0, −3.07 to 0.93) | 0.353 |
| Normal, n (%) | 22 (39.3) | 9 (40.9) | 13 (38.2) | 0.202 |
| Mildly delayed, n (%) | 22 (39.3) | 11 (50.0) | 11 (32.4) | |
| Severely delayed, n (%) | 12 (21.4) | 2 (9.1) | 10 (29.4) | |
Total cohort: infants born in 1996–2005; cohort I: 1996–2000; cohort II: 2001–2005.
Normal: ≤−1 Z score ≥0, performance within −1 SD or >0 SD; mildly delayed: >−1 Z score ≤−2, performance within −1 and −2 SD; severely delayed: Z score >−2, performance more than −2 SD.
AGA, appropriate for gestational age, ≥p10; SGA, small for gestational age, <p10.