Finger joint laxity, number of previous pregnancies and pregnancy induced back pain in a cohort study

Table 2 Abduction angle of the left fourth finger (°) throughout pregnancy and post-partum

Time	n	Range	Mean (S.D.)	p value
G.w. 11	194	24 to 62	40.1 (7.0)
G.w. 24	187	28 to 64	41.0 (6.8)
G.w. 36	173	24 to 59	40.6 (6.9)
13 w pp	167	26 to 58	41.8 (7.0)
Change from g.w. 11 to 24	186		0.9 (5.5)	0.02
Change from g.w. 24 to 36	172		-0.4 (4.9)	0.18
Change from g.w. 36 to 13 w pp	155		0.9 (5.2)	0.03
Change from g.w. 11 to 13 w pp	167		1.7 (5.2)	<0.0001

p-values refer to the intra-individual mean difference between the time points.
Gw = gestational week, w pp = weeks post partum.
Legend: Mean and range of abduction angle of the left fourth finger (°) among all women measured at the different time points during pregnancy and post partum. Also, the change of abduction angle of the left fourth finger between the different time points during pregnancy and postpartum are shown among those women with values at the particular time points. The statistical differences were tested with paired t-test.

ISSN: 1471-2393