Fig. 1

MBL2 genotype frequency distribution. The histogram plots genotype frequencies observed in the pre-term birth group (gray bars) compared to the control group (white bars). Genotypes were deduced from haplotype analysis based on the five analyzed MBL2 polymorphisms. The LYA/LYA genotype was found to be significantly more frequent in the control group (as indicated). All other differences were not statistically significant. The associated MBL phenotype groups are indicated at the bottom. Only genotypes with a frequency of at least 3% in one group (indicated on the horizontal axis) were considered for graphical representation (residual genotypes are subsumed in “other”).