Association of psychomotor scores at preschool age with infant, maternal, socioeconomic characteristics and markers of iodine status: continuous variables
| Total motor scale | Objective motor scale | Subjective motor scale | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | Mean/median* | SD/IQR* | Linear regression | |||||||||
| b | 95% CI | p Value | b | 95% CI | p Value | b | 95% CI | p Value | ||||
| TSH (mUI/L) | 284 | 3.7* | 1.8, 5.9* | 0.02 | −0.03 to 0.07 | 0.351 | 0.01 | −0.04 to 0.05 | 0.794 | 0.04 | −0.01 to 0.08 | 0.124 |
| Term pregnancy (week) | 278 | 39.3 | 1.6 | −0.05 | −0.13 to 0.03 | 0.215 | −0.05 | −0.13 to 0.03 | 0.215 | −0.05 | −0.12 to 0.03 | 0.226 |
| Birth weight (g) | 283 | 3406.7 | 428.3 | 0.00 | −0.00 to 0.00 | 0.652 | 0.00 | −0.00 to 0.00 | 0.498 | 0.00 | −0.00 to 0.00 | 0.817 |
| Birth length (cm) | 279 | 50.0 | 3.2 | −0.02 | −0.06 to 0.02 | 0.379 | −0.02 | −0.05 to 0.02 | 0.388 | −0.02 | −0.05 to 0.02 | 0.434 |
| Birth HC (cm) | 245 | 34.6 | 3.3 | −0.01 | −0.05 to 0.02 | 0.528 | −0.01 | −0.05 to 0.03 | 0.708 | −0.02 | −0.05 to 0.02 | 0.455 |
| Actual age (year) | 283 | 4.7 | 0.5 | −0.45 | −0.72 to −0.17 | 0.002 | −0.47 | −0.73 to −0.20 | 0.001 | −0.29 | −0.54 to −0.03 | 0.030 |
| Actual weight (kg) | 280 | 18.6 | 3.0 | −0.05 | −0.10 to−0.01 | 0.013 | −0.05 | −0.09 to −0.01 | 0.011 | −0.04 | −0.08 to 0.00 | 0.051 |
| Actual height (cm) | 281 | 107.9 | 8.1 | −0.02 | −0.04 to−0.00 | 0.010 | −0.02 | −0.03 to −0.00 | 0.027 | −0.02 | −0.04 to −0.01 | 0.006 |
| Actual HC (cm) | 280 | 51.3 | 3.3 | −0.03 | −0.07 to 0.01 | 0.142 | −0.02 | −0.06 to 0.01 | 0.238 | −0.03 | −0.07 to 0.00 | 0.098 |
| Mother age (years) | 280 | 36.5 | 5.1 | 0.00 | −0.02 to 0.03 | 0.817 | 0.00 | −0.02 to 0.03 | 0.802 | 0.00 | −0.02 to 0.03 | 0.802 |
| Mother weight (kg) | 277 | 65.1 | 12.0 | 0.00 | −0.02 to 0.00 | 0.381 | 0.00 | −0.01 to 0.00 | 0.384 | 0.00 | −0.01 to 0.01 | 0.452 |
| Mother height (cm) | 275 | 165.8 | 6.2 | 0.00 | −0.02 to 0.02 | 0.951 | 0.01 | −0.01 to 0.03 | 0.621 | −0.01 | −0.03 to 0.01 | 0.475 |
| Weight gain during pregnancy (kg) | 261 | 13.3 | 5.6 | 0.00 | −0.02 to 0.02 | 0.969 | 0.00 | −0.02 to 0.03 | 0.868 | 0.00 | −0.02 to 0.02 | 0.954 |
| Nb of cigarettes during pregnancy | 17 | 5* | 5.0, 10.0* | −0.08 | −0.14 to −0.01 | 0.020 | −0.07 | −0.13 to 0.00 | 0.056 | −0.09 | −0.15 to −0.02 | 0.014 |
| Nb of people in the household | 274 | 3* | 3.0, 4.0* | 0.14 | 0.01 to 0.27 | 0.029 | 0.13 | 0.00 to 0.25 | 0.049 | 0.12 | −0.00 to 0.24 | 0.051 |
*Median and IQR are presented. Significant associations (p values <0.05) are marked in bold.
PsychoTSH study, Belgium, 2008–2014.
p value from univariate linear regression. HC, head circumference; N, number of subjects; Nb, number; TSH, thyroid stimulating hormone.