Table 2.
Maternal CRP Level and Later Clinical Difficulties and Cognitive Performancea
| Factor | Mean CRP Z-score (SD) | P-value for Difference | |
|---|---|---|---|
| Clinical factors | |||
| Possible psychotic experiences age 16 | No (4608, 92.7%) | −0.025 (0.992) | — |
| Yes (364, 7.3%) | 0.096 (0.972) | .025 | |
| Ever smoked age 16 | No (2882, 52.8%) | 0.026 (0.983) | — |
| Yes (2581, 47.2%) | −0.038 (0.991) | .017 | |
| Ever drunk age 16 | No (1657, 32.7%) | 0.013 (0.970) | — |
| Yes (3417, 67.3%) | −0.029 (1.001) | .153 | |
| Ever cannabis age 16 | No (4893, 94.3%) | −0.025 (0.992) | — |
| Yes (297, 5.7%) | 0.152 (0.955) | .003 | |
| Cognitive performance | |||
| Standard age 7 | Above average (2345, 36.1%) | −0.041 (0.988) | — |
| Average (3475, 53.5%) | 0.014 (1.004) | .039 | |
| Below average (675, 10.4%) | 0.073 (1.011) | .009 | |
| Academic age 16 | Highest tertile (2145) | −0.084 (0.990) | — |
| Middle tertile (2243) | 0.000 (0.980) | .005 | |
| Lowest tertile (2421) | 0.050 (1.022) | <.001 | |
| Academic factor 1 | Highest tertile (2193) | −0.014 (0.967) | — |
| Middle tertile (2186) | −0.009 (1.005) | .877 | |
| Lowest tertile (2265) | 0.006 (1.023) | .517 | |
| Academic factor 2 | Highest tertile (2216) | 0.007 (1.006) | — |
| Middle tertile (2230) | −0.027 (0.994) | .255 | |
| Lowest tertile (2198) | 0.003 (0.996) | .887 |
Note: CRP, C-reactive protein.
a N includes all those with data available on variable.