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. 2015 Aug 31;10(8):e0137249. doi: 10.1371/journal.pone.0137249

Fig 2. Dental Infection of P.g. Induces PTB and LBW.

Fig 2

Maternal body weight changes (A) were recorded from P.g. infection (0 wks) to initiation of mating (6 wks post-infection). Gestational day (gd) (B) was confirmed in NC and P.g.-infected groups (n = 20 for each group). Means (±SD) are 20.45 ± 0.56 and 18.25 ± 0.925, respectively. Statistical significance was determined using the unpaired t-test. Birthweight of neonates (C-H) was compared between NC and P.g.-infected groups, considering all neonates or comparing litters with the same number of neonates (to control for litter size effect on birthweight). Statistical significance was determined using the unpaired t-test. SGA (small for gestational age) (I) was defined as pups birth weight less than the 10th percentile in NC group, which is 1.27 g (indicated by dotted line). 13 pups out of 30 pups in P.g.-infected groups were SGA. Statistical analysis for SGA is shown in Table 1. ** p < 0.01. *p < 0.05.