Variables

PR duration

p

Long

Normal

Short

Sex

F

9.10

90.90

0.00

0.409

M

20.50

79.00

0.50

Age group (years)

<20

33.30

66.70

0.00

0.575

20 - 29

16.20

83.80

0.00

≥30

19.40

79.90

0.70

Entire sample

19.4

80.20

04.00

-