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Table 2 Mean (Std) values for the target and reference groups at baseline (time 0) and after 10-months (time II) of 25-OHD nmol/l and grip strength; number and frequencies of those unable to perform the upper leg tests

From: Long-term adherence and effects on grip strength and upper leg performance of prescribed supplemental vitamin D in pregnant and recently pregnant women of Somali and Swedish birth with 25-hydroxyvitamin D deficiency: a before-and-after treatment study

 

Target group

Reference group

N = 46

N = 25

 

Time 0

Time II

p

Time 0

Time II

p

25-OHD mean (Std)

15.8 (9.7)a

49.2 (35.4)

.001

38.8 (10.3)

67.5 (26.7)

.001

Grip strength, N (mean, Std)

153 (55)

188 (57)

.001

257 (68)

297 (58)

.003

Unable to squat, n (%)

35 (76.1)

9 (19.6)

<.001

0 (0)

1 (4.0%)

1.000

Unable to stand on one leg, n (%)

11 (23.9)

11 (23.9)

1.000

1 (4.0)

0 (0)

1.000

Unable to keep hip up, n (%)

10 (21.7)

1 (2.2)

.004

1 (4.0)

0 (0)

1.000

  1. a Mean 25-OHD estimated at 9 for n = 17 women with unmeasurable 25-OHD (<10 nmol/L) at Time 0. Significant differences before and after were calculated by Wilcoxon signed-ranks test for interval data and McNemar’s test for dichotomous data