Table 2

Access to care, contraception, chlamydia trachomatis infection, history and type of voluntary pregnancy interruption (ToP) of undocumented pregnant migrants vs. pregnant women with legal residency status (control group) who had ToP at the Geneva University Hospitals, Switzerland between March 2005 and October 2006

Characteristic

or measurement

Undocumented

migrants

(n = 175)

Missing

n(%)

Control group

(n = 208)

Missing

n(%)

Mean difference (CI95%)° or OR (CI95%)°°

Gravidity (SD)

2.8 (1.6)

1 (0.6)

2.4 (1.4)

6 (2.9)

0.4 (0.1;0.7)°

Parity (SD)

1.2 (1.2)

0

0.8 (0.9)

0

0.4 (0.2;0.6)°

Weeks of pregnancy at first contact with a health professional (SD)

8.0 (2.6)

0

6.9 (2.1)

0

1.2 (0.7;1.6)°

Delayed first contact with a health professional

(>10 weeks of amenorrhea)

14.9%

0

5.8%

0

2.9 (1.4;5.8)°°

(>12 weeks of amenorrhea)

4.0%

0

1.4%

0

2.9 (0.7;11.7)°°

Chlamydia trachomatis infection: (CTI)

12.8%

3 (1.7)

4.4%

2 (1.0)

3.2 (1.4;7.3)°°

CTI by type of contraception:

Condom use

7.0%

3 (1.7)

3.8%

2 (1.0)

1.9 (0.4;9.0)°°

Other means of contraception

15.7%

3 (1.7)

4.8%

2 (1.0)

3.7 (1.4;9.7)°°

Contraception the month of conception:

No contraception

23.4%

0

14.9

0

1.8 (1.04;2.9)°°

Insecure contraception (of those with contraception)

83.6%

0

75.7%

0

1.6 (0.9;2.9)°°

Condom

42.5%

0

46.3%

0

1.4 (0.9;2.1)°°

Calendar (Ogino)

29.9%

0

17.0%

0

2.2 (1.3;3.8)°°

Withdrawal

11.2%

0

12.4%

0

1.1 (0.6;2.3)°°

Secure contraception (of those with contraception):

Pill

12.7%

0

21.5%

0

2.1 (1.1;3.8)°°

Others

3.7%

0

2.8%

0

1.6 (0.4;5.8)°°

°Mean difference for continuous data (if value 0 included in CI95% then p > 0.05),

°°Age-adjusted OR for categorical data (if value 1 included in CI95% then p > 0.05)

Wolff et al. BMC Public Health 2008 8:391   doi:10.1186/1471-2458-8-391