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Table 1 Characteristics of the Osteogenesis imperfecta (OI) patient cohort, sub-grouped by OI type, and of the healthy controls

From: Fatigue and disturbances of sleep in patients with osteogenesis imperfecta – a cross-sectional questionnaire study

  All Mild type Moderate type Severe type Unknown type Controls
Number of participants 56 22 7 10 17 56
Age range in years (mean) 16–75 (47) 19–75 (48) 26–55 (43) 18–52 (33) 16–71 (54) 16–75 (44)
Females/males 41/15 19/3 7/0 5/5 10/7 41/15
Height range in meters (mean) 0.80–1.75 (1.45) 1.47–1.75 (1.6) 0.80–1.65 (1.3) 0.80–1.33 (1.1) 1.10–1.75 (1.5) NA
Body mass index, mean 29 27 28 36 29 NA
Ambulation (no aid/crutches/wheelchair) 31/5/19 19/2/1 3/0/3 0/0/8 9/3/8 56/0/0
Bodily pain range (mean) 0–10 (4) 0–9 (4) 0–10 (4) 0–5 (2.3) 0–9 (4) 0–9(2)a
Fatigue range (mean) 0–10 (5) 2–10 (6) 2–8 (5.8) 1–7 (2.9) 0–8 (5) 0–8 (4)
Diagnosed sleep apnea 8 2 1 2 3 1
  1. NA data not requested
  2. athe difference, as compared to patient group mean, is statistically highly significant as p < 0.001