Table 2.
Longitudinal model estimates of Sucking Outcomes, Beta Estimate (SE); n = 183
| Variable | NOS | MAMP | MSPB | SMI |
|---|---|---|---|---|
| Var-Cov Structure: Random Effects (Error Structure) | Random Intercept (Toeplitz 2) | Random Intercept (Unstructured) | Random Intercept and time (Unstructured) | Random Intercept and time (Unstructured) |
| Intercept | 66.60(9.62)*** | −108.95(41.00)** | 2.97(2.60) | 1.381(0.314)*** |
| Group | −9.11(10.75) | 1.05(2.55) | −2.11(1.23)* | −0.107(0.118) |
| day | 1.59(3.13) | 1.08(0.23)*** | −0.32(0.28) | 0.009(0.031) |
| day*day | 0.22(0.24) | 0.03(0.02) | 0.002(0.002) | |
| Group*day | 13.69(4.63)*** | 0.57(0.34)* | 1.16(0.41)*** | 0.123(0.046)** |
| Group*day*day | −0.84(0.35)** | −0.06(0.03)** | −0.007(0.003)* | |
| Small for Gestational Age | 0.245(0.116)** | |||
| Gestational Age, week | 3.70(1.18)*** | |||
| Birth Weight, kg | 9.95(3.71)** | 2.85(1.33)** | 0.500(0.155)*** | |
| Infant morbidity score at delivery (subset of POPRAS) | −0.24(0.11)** | |||
| Chronological age at baseline, day | 0.89(0.28)*** | |||
| Number of days of oral feeding ≥10% before baseline | 5.73(1.38)*** | 0.040(0.015)** | ||
|
Estimated mean difference between groups at different time point (ATVV- Attention Control group) | ||||
| Day 0 (n=183) | −9.11(10.75) | 1.05(2.55) | −2.11(1.23)* | −0.11(0.12) |
| Day 7 (n=89) | 45.66(15.23)*** | 5.04(2.62)* | 2.82(1.36)** | 0.43(0.15)*** |
| Day 14 (n=48) | 18.35(20.64) | 9.02(4.30)** | 1.38(1.39) | 0.33(0.19)* |
NOS: Number of Sucks; MAMP: Mean adjusted max pressure; MSPB: Mean sucks per burst; SMI: Sucking Maturity Index
*
p < 0.10(marginally significant)
**
p < 0.05
***
p < 0.01