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Mean rank of antibody concentrations (from lowest, 1, to highest, 142) for NLGN4Y isoform 1 by group controlling for pregnancy (n = 142). Omnibus standardized test statistic from the Jonckheere–Terpstra test = 3.90, P = 0.000096, two-tailed, r = 0.33. Pairwise comparisons: ****P = 0.00035, r = 0.35; ***P = 0.008, r = 0.39; **P = 0.021, r = 0.30; *P = 0.024, r = 0.19. All Ps for pair-wise comparisons are one-tailed. Error bars represent SEM.
