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Logo of arthrestherBioMed Centralbiomed central web sitesearchsubmit a manuscriptregisterthis articleArthritis Research & Therapy
 
From:
Published online Mar 5, 2009. doi: 10.1186/ar2636
Table 1
Characteristics of the study population
Primary knee replacement (n = 541)Primary hip replacement (n = 468)No primary joint replacement (n = 38,014)
Age of entering the MCCS (years)60.3 ± 6.859.7 ± 7.154.8 ± 8.6
Age of entering the JR cohort (years)68.1 ± 6.967.3 ± 7.262.6 ± 8.8
Age on JR (years)70.7 ± 6.970.1 ± 7.2
Women, number (%)344 (63.6)283 (60.5)22,699 (59.7)
Height (cm)164.7 ± 9.9165.7 ± 8.8165.0 ± 9.3
Weight (kg)80.7 ± 14.975.5 ± 13.273.1 ± 13.6
Body mass index (kg/m2)29.8 ± 5.127.5 ± 4.326.8 ± 4.4
Waist circumference (cm)91.7 ± 12.886.3 ± 12.785.1 ± 12.8
Waist-to-hip ratio0.85 ± 0.090.84 ± 0.100.84 ± 0.09
Fat mass (kg)32.3 ± 10.427.8 ± 9.126.0 ± 9.1
Percentage fat (%)39.7 ± 8.636.5 ± 8.335.3 ± 8.6
Country of birth, number (%)
 Australia429 (79.3)383 (81.8)25,977 (68.3)
 United Kingdom41 (7.6)32 (6.8)2,774 (7.3)
 Italy45 (8.3)39 (8.3)4,999 (13.2)
 Greece26 (4.8)14 (3.0)4,264 (11.2)
Education level, number (%)
 Primary school85 (15.8)50 (10.7)7,107 (18.8)
 Some high school255 (47.3)192 (41.2)14,422 (38.2)
 Completed high school112 (20.8)102 (21.9)7,814 (20.7)
 Degree/diploma87 (16.1)122 (26.2)8,426 (22.3)
Data reported as the mean ± standard deviation, except where indicated. MCCS, Melbourne Collaborative Cohort Study; JR, joint replacement.
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