Linear regression of development on birthweight and gestational age of 158 children: y=a+bx
| Outcome variable (y) | Explanatory variable (x) | Estimated | Standard Error of b | P value for b | Adjusted 100 × r2 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| a | b | ||||||||||
| Full IQ | Birthweight | 82.2 | 8.6 | 4.3 | 0.048 | 1.9 | |||||
| Birthweight ratio | 74.8 | 21.1 | 7.2 | 0.040 | 4.7 | ||||||
| Gestational age | 94.0 | −0.0 | 0.6 | 0.961 | 0.0 | ||||||
| Verbal IQ | Birthweight | 85.6 | 6.8 | 4.4 | 0.125 | 0.9 | |||||
| Birthweight ratio | 81.9 | 14.2 | 7.4 | 0.058 | 1.7 | ||||||
| Gestational age | 88.8 | 0.2 | 0.7 | 0.782 | 0.0 | ||||||
| Performance IQ | Birthweight | 80.8 | 9.6 | 4.5 | 0.035 | 2.2 | |||||
| Birthweight ratio | 69.6 | 27.1 | 7.4 | 0.000 | 7.3 | ||||||
| Gestational age | 102.5 | −0.3 | 0.7 | 0.639 | 0.0 | ||||||
| TOMI score | Birthweight | 5.8 | −1.5 | 1.1 | 0.192 | 0.5 | |||||
| Birthweight ratio | 6.2 | −2.5 | 1.9 | 0.182 | 0.5 | ||||||
| Gestational age | 8.3 | −0.1 | 0.2 | 0.381 | 0.1 | ||||||
| Reading rate | Birthweight | 114.6 | −4.0 | 7.1 | 0.572 | 0.4 | |||||
| Birthweight ratio | 94.5 | 17.3 | 11.9 | 0.148 | 0.7 | ||||||
| Gestational age | 146.6 | −1.2 | 1.0 | 0.235 | 0.3 | ||||||
| Sex (female=1) | 103.3 | 14.6 | 3.6 | 0.000 | 8.8 | ||||||
| Accuracy | Birthweight | 98.3 | 3.9 | 5.2 | 0.451 | 0.0 | |||||
| Birthweight ratio | 97.1 | 7.1 | 8.7 | 0.415 | 0.0 | ||||||
| Gestational age | 90.2 | 0.4 | 0.8 | 0.566 | 0.0 | ||||||
| Sex (Female=1) | 100.4 | 6.3 | 2.7 | 0.022 | 2.7 | ||||||
| Comprehension | Birthweight | 91.2 | 5.1 | 5.2 | 0.326 | 0.0 | |||||
| Birthweight ratio | 84.5 | 15.2 | 8.7 | 0.081 | 1.3 | ||||||
| Gestational age | 100.6 | −0.1 | 0.8 | 0.900 | 0.0 | ||||||
| Sex (Female=1) | 97.4 | 0.7 | 2.8 | 0.802 | 0.0 | ||||||