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Table 1 Litter characteristics at gestation day 21

From: Fetal growth outcomes following peri-implantation exposure of Long-Evans rats to noise and ozone differ by sex

CharacteristicsANOVAA + QA + NO3 + QO3 + N
Extrauterine weight gain (g)150 ± 5.27141 ± 4.68149 ± 4.36150 ± 4.76
Total gestational food intake (g)493 ± 12.6473 ± 15.0478 ± 14.3496 ± 19.6
Total corpora lutea14.3 ± 0.3714.9 ± 0.4514.0 ± 0.4915.1 ± 0.63
Implantation sites per litter12.7 ± 0.4112.9 ± 0.4213.1 ± 0.5513.8 ± 0.56
Resorptions per litter0.71 ± 0.220.73 ± 0.230.73 ± 0.250.94 ± 0.19
Full term fetuses12.0 ± 0.3812.1 ± 0.4912.3 ± 0.4712.9 ± 0.50
Percent males per litter53.1 ± 2.4951.1 ± 3.3145.2 ± 4.4049.5 ± 3.19
Total litters excluding a,b,c 14a,b15c15b16
  1. Data are presented as mean ± standard error and analyzed by Dunnett’s post-test within a two-way ANOVA. The second column details if a significant effect or interaction determined by two-way ANOVA for each endpoint was found; however, no significant effect or interaction was measured
  2. A + Q air + quiet, A + N air + noise, O3 + Q ozone + quiet, O3 + N ozone + noise
  3. Dams were removed from study if apost-implantation loss was n ≥ 7, bpre-implantation loss (corpora lutea–implantation sites) was n ≥ 7, or ctotal litter size was n ≤ 3, effects suggestive of an underlying pregnancy complication unrelated to exposure