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Table 1 Baseline characteristics of the study population and stratified by self-reported generalized joint hypermobility

From: The Association of Self-Reported Generalized Joint Hypermobility with pelvic girdle pain during pregnancy: a retrospective cohort study

Variables All women
N = 2217 (100%)
Women with GJH
N = 637 (28.7%)
Women without GJH
N = 1580 (71.3%)
n = n (%) n = n (%) n = n (%)
Age, years, mean (SD)b 1645 29.4 (4.8) 476 28.8 (4.9) 1169 29.6 (4.7)
BMI, median (IQR) kg/m2,b 1622 23.9 (21.9–27.3) 465 23.8 (21.9–26.8) 1157 23.9 (21.9–27.4)
Ethnicity, origin outside Europe, n (%) 2189 123 (5.6) 622 43 (6.9) 1567 80 (5.1)
Multiparous n (%) 2200 1228 (55.8) 630 361 (57.3) 1570 867 (55.2)
Completed university
Education n (%)a
2217 1110 (50.1) 637 282 (44.3) 1580 828 (52.4)
Having a partner n (%) 2205 2177 (98.7) 629 621 (98.7) 1576 1556 (98.7)
History of back pain n (%) 2217 197 (8.9) 637 68 (10.7) 1580 129 (8.2)
  1. SD Standard deviation, IQR Inter quartile range, BMI body mass index, kg/m2 kilograms per square meter, GJH Generalized Joint Hypermobility = sum score ≥ 2 in the five part questionnaire, no GJH sum score < 2 in the five part questionnaire
  2. a Statistical difference between women with and without GJH; P < 0.05
  3. b During first trimester