Table 2 Characteristics of women with PGP or PGP plus LBP and women with no PGP at follow-up

Age, years

37.7 (4.9)

39.4 (5.7)

0.059

38.0 (29.0; 49.0)

40.0 (24.0; 54.0)

n = 37

n = 290

Time from randomisation to follow-up (years)

7.35 (4.02)

8.41 (3.80)

0.27

5.00 (2.00; 12.00)

11.00 (1.00; 13.00)

Working hours/week

35.7 (7.6)

37.1 (6.5)

0.032

38.0 (19.0; 60.0)

40.0 (1.0; 49.0)

n = 29

n = 221

Marital status

 Single

3 (8.6 %)

24 (9.5 %)

 Married/cohabitating

32 (91.4 %)

229 (90.5 %)

1.00

Number of pregnancies

 1

4 (12.1 %)

18 (7.2 %)

 2

8 (24.2 %)

89 (35.6 %)

 3

15 (45.5 %)

69 (27.6 %)

 4

6 (18.2 %)

73 (29.2 %)

 5

0 (0.0 %)

1 (0.4 %)

0.56

Parity

 1

5 (14.7 %)

30 (12.0 %)

 2

20 (58.8 %)

139 (55.4 %)

 3

8 (23.5 %)

75 (29.9 %)

 4

1 (2.9 %)

6 (2.4 %)

 5

0 (0.0 %)

1 (0.4 %)

0.52

Caesarean section

4 (14.3 %)

48 (19.0 %)

0.76

Birthweight last born baby, grams

3633 (492)

3692 (490)

0.43

3548 (2995; 4615)

3700 (2129; 5000)

n = 30

n = 274

Sex of last born baby, boy

15 (50 %)

140 (51 %)

0.925

n = 30

n = 275