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Table 1 Distribution of the social and clinical data of 71 Swedish and 52 Somali women by categories of 25(OH)D (nmol/L), with mean values and 95% confidence interval (95% CI) of interval data and median values (IQR) of ordinal data, and number (n) and frequencies of categorical data

From: Physical performance and 25-hydroxyvitamin D: a cross-sectional study of pregnant Swedish and Somali immigrant women and new mothers

  25(OH)D categories p
  < 10 10–24 25–49 50–74 > 75  
Swedish, n (%)   7 (9.9) 31 (43.7) 29 (40.8) 4 (5.6)  
Somali, n (%) 18 (34.6) 29 (55.8) 4 (7.7) 1 (1.9)   
Variables       
PTH, mean 95% CI       
Swedish   4.4 (2.5–6.4) 4.8 (3.8–5.7) 4.4 (3.4–5.3) 5.7 (0.6–10.8)  
Somali 16.2 (7.7–24.7) 11.1 (9.4-12.9) 6.8 (2.0–11.7)    
Age, years       
Swedish 31.7 (24.8–35.6) 29.9 (28.2–31.7) 31.2 (29.4–32.9) 31.0 (18.7–43.3)  
Somali 26.7 (23.4–30.0) 29.0 (26.7–31.4) 28.3 (16.7–35.8) 36.0   
Height, cm       
Swedish   164 (158–169) 168 (166–170) 167 (165–170) 171 (163–179)  
Somali 161 (159–163) 162 (159–164) 165 (160–169) 155   
Pregnant, months       
Swedish 6.3 (4.3–8.4) 6.1 (5.3–7.0) 5.9 (5.1–6.8)   
Somali 6.2 (5.4–7.0) 5.8 (3.7–8.0)    
Parity, n       
Swedish   1 (0–2) 1 (0–2) 1 (1–1.5) 1 (0.5–1) 0.02
Somali 1 (0–4) 3 (2–6) 2.5 (1–5.5) 3   
Activity/week, n       
Swedish 3 (0–3) 0 (0–3) 3 (0–3) 3 (1–3) 0.04
Somali 0 (0–3) 1.5 (0–3) 3 (0–3)    
  1. Analysis of variance test of variance (ANOVA) for significant differences in means between groups of interval data. Kruskal-Wallis test was used for significant differences in medians across categories of 25(OH)D. PTH in pmol/L.
  2. Significant p-values are in bold.