Table 5 Obstetric outcomes between undocumented women (N = 62) and all pregnant women (N = 47,274) in 2018

First prenatal visit (gw)

20.5 (17.9–23.1)

9.5 (9.5–9.5)

< 0.001

Number of prenatal visits

5.2 (4.2–6.2)

13.4 (13.3–13.5)

< 0.001

Birth weight of newborn (g)

3438 (3341–3534)^c

3499 (3494–3504)^d

0.38

n

proportion % (95% CI)

n

proportion % (95% CI)

p-value^b

Vacuum extraction

8^c

17.0 (7.6–30.8)^c

4598

9.7 (9.5–10.0)

0.13

Caesarean section

6^c

12.8 (4.8–25.7)^c

7899

16.7 (16.4–17.0)

0.56

Neonatal admission

3^c

6.4 (1.3–17.5)^c

5609^d

11.7 (11.5–12.0)^d

0.36