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Table 3: 
Study population demographics for cohort 3—three-month- to 5-year-olds (n = 203)
Vaginal Delivery (Mean ± SD)Cesarean Delivery (Mean ± SD)P Value
MWF study (n = 203)16439
Mother's post-secondary education (yr)5.8 ± 1.06.0 ± 0.9.22
Mother's age at pregnancy (yr)29.0 ± 5.633.8 ± 5.1<.001
Sex (M/F)93/7123/16.86
Gestational age at birth (days)277 ± 8273 ± 4.001
Birth weight (kg)3.54 ± 0.453.37 ± 0.48.06
Birth length (cm)50.8 ± 4.150.8 ± 4.1.63
No. of scans2.2 ± 1.22.4 ± 1.3.32
Mean interscan period (days)296 ± 144333 ± 147.12