TABLE 1.

General Characteristics

Generalized Joint Hypermobility With Musculoskeletal Complaints (n = 15)Generalized Joint Hypermobility Without Musculoskeletal Complaints (n = 16)Reference Group (n = 79)
Clinical characteristics
 Age (y)8.1 (2.5)8.9 (0.7)9.3 (0.7)
 Gender (% girls)607553
 Body height (m)1.34 (0.2)1.36 (0.07)1.39 (0.1)
 Body weight (kg)30.3 (10.4)29.2 (4.5)32.5 (6.0)
 Quetelet index (kg/m2)16.4 (2.0)16.0 (1.7)16.5 (1.6)
 Bulbena score (P50; P25-75)6 (6-7)5 (4-5)0 (0-1)
 Total range of joint motion (degrees)1743.2 (46.0)1629.4 (44.3)1542.5 (48.3)
 Systolic blood pressure (mm Hg)100.2 (8.7)106.7 (10.5)110.8 (9.4)
 Diastolic blood pressure (mm Hg)64.3 (6.3)70.1 (6.7)71.9 (6.8)
 Pulse pressure (mm Hg)35.8 (7.2)36.6 (6.6)38.9 (7.0)
 Total muscle strength (N)782.2 (224.2)783.2 (120.7)858.4 (127.7)
 Total skin extensibility (mm)41.5 (1.2)37.7 (2.5)35.5 (2.8)
Quantitative bone ultrasound measurements
 BUA (dB/MHz)50.4 (10.3)57.9 (13.9)57.6 (14.4)
 SOS (m/s)1544.6 (15.1)1575.6 (27.7)1569.8 (23.2)
Collagen biochemistry
 Hyp/creatinine (μmol/mmol)123.1 (33.8)106.1 (25.1)113.3 (26.7)
 HP/creatinine (μmol/mmol)214.5 (69.0)250.3 (76.0)250.9 (69.2)
 LP/creatinine (μmol/mmol)59.1 (21.5)75.2 (27.3)74.8 (32.2)
 Ratio HP/LP3.7 (0.5)3.5 (0.6)3.6 (0.8)
  • Values are means standard deviation, unless otherwise indicated.

    P25 indicates 25th percentile; P75, 75th percentile; BUA, broadband ultrasound attenuation.