Table 4.
Linear Regression Results from Primary Analysis III: SACMEQ Cohort
| SACMEQ Reading Comprehension | SACMEQ Mathematics | Primary 6 Reading Comprehension | Primary 6 Mathematics | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model Significance | <.0001 | <.0001 | <.0001 | <.0001 | ||||||||
| R-Squared | 0.68 | 0.58 | 0.60 | 0.46 | ||||||||
| Observations | 179 | 179 | 156 | 151 | ||||||||
| Independent Variables | Estimate | St. Err. | p-value | Estimate | St. Err. | p-value | Estimate | St. Err. | p-value | Estimate | St. Err. | p-value |
| Prenatal THg | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Postnatal THg × Sex | [0.001] | [0.004] | [0.011] | [0.016] | ||||||||
| Female × Postnatal THg | 5.09 | (2.14) | [0.019] | 3.59 | (2.03) | [0.079] | -- | -- | -- | -- | -- | -- |
| Male × Postnatal THg | -5.59 | (2.21) | [0.012] | -5.10 | (2.13) | [0.018] | -0.59 | (0.20) | [0.003] | -- | -- | -- |
| WISC-III Full Scale IQ | 5.21 | (0.63) | <.0001 | 5.03 | (0.59) | <.0001 | 0.37 | (0.06) | <.0001 | 0.91 | (0.16) | <.0001 |
| CVLT Short Delay (Verbal Memory)* | 24.37 | (6.70) | [0.000] | 18.97 | (6.42) | [0.004] | 1.69 | (0.58) | [0.004] | 5.10 | (1.61) | [0.002] |
| Maths Teacher Experience | # | 1.42 | (0.63) | [0.025] | # | 0.47 | (0.18) | [0.009] | ||||
| English Teacher Training | 20.27 | (7.06) | [0.005] | # | 1.06 | (0.60) | [0.078] | # | ||||
| English Teacher Experience | 2.55 | (0.55) | <.0001 | # | 0.20 | (0.05) | [0.000] | # | ||||
-- Non-significant
covariate is not relevant for this model
Short Delay used due to large numbers of missing Long Delay scores for SACMEQ cohort
Mother's Ravens Progressive Matrices, given at 29 month examination was used due to missing values of the KBIT for the SACMEQ cohort
Other significant effects not shown in Table: Henderson Early Learning Profile for SACMEQ Reading Comprehension (1.58 (0.72) [0.030]); CBCL for SACMEQ Reading Comprehension (-1.61 (0.64) [0.012]) and SACMEQ Mathematics (-1.55 (0.61) [0.012]); Hollingshead SES (Overall) was significant for Primary 6 Reading Comprehension (p=0.031); SES Professional for SACMEQ Reading Comprehension (28.14 (13.43) [0.038]) and Primary 6 Reading Comprehension (3.72 (1.26) [0.004]).