Crude odds ratio (OR) with 95% confidence intervals (CI) as an estimate of the relative risk of motor problems by sex, defined by a score below the 5th centile on Movement assessment battery for children (total ABC score) in two groups of low birth weight compared with a control group
| Group | Sex | < 5th centile | % | ⩾5th centile | % | OR | 95%CI | |
|---|---|---|---|---|---|---|---|---|
| VLBW, Very low birth weight; SGA, small for gestational age. | ||||||||
| VLBW | Boys | (n = 27) | 7 | 25.9 | 20 | 74.1 | 11.6 | 1.3 to 100.9 |
| Girls | (n = 23) | 6 | 26.1 | 17 | 73.9 | 8.1 | 1.5 to 44.2 | |
| SGA | Boys | (n = 27) | 7 | 25.9 | 20 | 74.1 | 11.6 | 1.3 to 100.9 |
| Girls | (n = 32) | 2 | 6.3 | 30 | 93.8 | 1.5 | 0.2 to 11.5 | |
| Control | Boys | (n = 34) | 1 | 2.9 | 33 | 97.1 | 1.0 | |
| Girls | (n = 48) | 2 | 4.2 | 46 | 95.8 | 1.0 | ||