an overall trendgold
Finally, the 4 th quartile of paternal urinary concentrations of high molecular weight metabolite mCHP was associated with a 7.0 day (95 % CI = 2.2, 11.9) increase in gestational age, compared with the lowest quartile; an overall trend was observed for mean change in gestational age with increasing urinary levels of mCHP (p for trend = 0.005).