Table 2 Pairwise comparison of mean difference (LoA) between different first-trimester dating formulae (Difference: Column formula - Row formula). Values shown in white are for the TRAINING DATASET (N_o = 2562) and values shown in grey are for the TEST DATASET (N_o = 808) (see Methods for details)

From: Comparison of first trimester dating methods for gestational age estimation and their implication on preterm birth classification in a North Indian cohort