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Table 2 Association between subgastrocnemius bursitis, popliteal cyst and radiographic osteophytes or JSN

From: Popliteal cysts and subgastrocnemius bursitis are associated with knee symptoms and structural abnormalities in older adults: a cross-sectional study

  Univariable Multivariable*
  β 95% CI P β 95% CI P
Medial tibiofemoral JSN       
Subgastrocnemius bursitis 0.32 (0.08, 0.56) 0.01 0.29 (0.05, 0.54) 0.01
Popliteal cyst 0.04 (-0.17, 0.25) 0.68 -0.03 (- 0.25, 0.19) 0.77
Lateral tibiofemoral JSN       
Subgastrocnemius bursitis -0.11 (-0.42, 0.19) 0.47 -0.17 (-0.49, 0.14) 0.28
Popliteal cyst 0.01 (-0.24, 0.26) 0.92 -0.02 (-0.28, 0.24) 0.87
Medial tibiofemoral osteophyte       
Subgastrocnemius bursitis 0.63 (0.30, 0.95) <0.001 0.61 (0.24, 0.97) 0.01
Popliteal cyst 0.48 (0.17, 0.78) 0.01 0.60 (0.25, 0.95) 0.01
Lateral tibiofemoral osteophyte       
Subgastrocnemius bursitis -0.02 (-0.67, 0.63) 0.95 -0.09 (-0.78, 0.58) 0.78
Popliteal cyst 0.43 (0.03, 0.82) 0.03 0.46 (0.02, 0.91) 0.03
  1. Dependent variable: joint space narrowing (JSN) or osteophyte score. Independent variable: subgastrocnemius bursitis or popliteal cyst, per grade. *Adjusted for age, sex, body mass index, disease status, medial or lateral tibiofemoral osteophytes for JSN, or medial or lateral tibiofemoral JSN for osteophytes. Data in bold denote statistically significant results.