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Table 1 Descriptive characteristics of JoCo OA participants with complete data (n = 3857)

From: Comorbid conditions and the transition among states of hip osteoarthritis and symptoms in a community-based study: a multi-state time-to-event model approach

 Study visit (mean ± SD years from baseline)
Baseline
n = 3857
1st follow-up
n = 2300
(6.0 ± 1.2 years)
2nd follow-up
n = 1336
(12.2 ± 1.5 years)
3rd follow-up
n = 454
(18.4 ± 1.5 years)
Characteristics†n%n%n%n%
Age (years, mean ± SD))62.2± 9.867.0± 9.271.1± 7.874.9± 6.7
Original cohort (vs enrichment)273270.8161770.396071.9454100
Men149538.880835.146134.518941.6
African American126932.971030.940330.211425.1
< 12 years education141236.670130.529822.36815.0
Hip injury2456.42008.71259.45211.5
Obesity (BMI ≥ 30 kg/m2)154340.0106146.166349.622248.9
Prevalent DM53213.845719.934025.412728.0
Incident DM  1968.51148.5439.5
Prevalent CVD85522.273431.955741.721747.8
Incident CVD  30213.115911.95011.0
Hip symptoms (max)$
 None240362.3151265.792869.530066.1
 Mild40510.525110.913710.34610.1
 Moderate64516.734314.918113.5449.7
 Severe3759.71948.4906.76414.1
State definitions
 No rHOA or symptoms174345.294741.253139.716035.2
 Asymptomatic rHOA73619.156424.542131.515433.9
 Hip symptoms only96725.150522.020115.07115.6
 SxHOA41110.728412.318313.76915.2
  1. BMI body mass index in kg/m2, measured and calculated from height and weight, DM diabetes mellitus, and CVD cardiovascular disease, are self-reported (see “Main effects: comorbid conditions” for additional detail. OA osteoarthritis, rHOA radiographic hip OA, sxHOA symptomatic hip OA
  2. n(%) unless otherwise noted
  3. $n = 29 participants are missing at baseline (this was a separate question than the ANY symptoms question used for the state definitions). The maximum severity for the person, considering both hips, is shown