Table 2. Fetal body weights obtained from unventilated and ventilated fetuses.

Study groups	All fetuses	Unventilated fetuses	Ventilated fetuses
Non-operated	39.5 ± 2.6	38.5 ± 4.6	40.5 ± 3.5
SHAM	39.0 ± 2.7	42.7 ± 3.3	35.9 ± 3.6
DH	38.1 ± 2.3	40.1 ± 1.5	35.6 ± 4.8
DH+TO	36.1 ± 2.9	40.1 ± 3.1	35.9 ± 3.6
TO	38.9 ± 1.7	39.8 ± 3.6	38.2 ± 1.1

Values expressed as mean ± SEM. In both sets of experiments (ventilated and unventilated fetuses), 4 to 5 animals per group were included. One-way ANOVA for comparisons between surgical groups (SHAM, DH, DH+ TO, and TO) and unpaired Student’s t-test for comparisons between non-operated and SHAM fetuses and between ventilated and unventilated fetuses. Values were similar between groups and sets of experiments. SHAM, sham-operated fetuses; DH, diaphragmatic hernia fetuses; DH+ TO, DH fetuses with tracheal occlusion; TO, sham-DH fetuses with TO.