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Table 1 Factors for visualization, univariable and multivariable analysis

From: An analysis of SPECT/CT non-visualization of sentinel lymph nodes in renal tumors

Factor Univariable analysis Multivariable analysis
OR [95% CI] P value OR [95% CI] P value
Number of patients 73    
Age (years) 0.92 [0.87–0.97] 0.008 0.88 [0.81–0.95] 0.002
Age above 59 (years)
 Yes 1.0    
 No 0.44 [0.15–1.22] 0.11   
Gender
 Female 1.0    
 Male 0.85 [0.32–2.20] 0.74   
BMI 0.99 [0.92–1.06] 0.99   
Tumor size (cm) 0.89 [0.71–1.12] 0.12   
Side
 Right 1.0    
 Left 0.92 [0.35–2.40] 0.87   
Polarity
 Upper pole 1.0    
 Intermedial pole 2.35 [0.53–10.4] 0.25   
 Lower pole 0.71 [0.24–2.09] 0.53   
Tumor location
 Posterior
  Yes 1.0    
  No 0.65 [0.25–1.70] 0.38   
Renal score
 Low 1.0    
 Moderate 0.75 [0.20–2.77] 0.66   
 High 0.84 [0.27–2.62] 0.76   
pT stage
 T1a 1.0    
 T1b 2.7 [0.33–21.9] 0.35   
 T2a 0.91 [0.19–4.35] 0.91   
 T2b 0.60 [0.08–4.40] 0.61   
 T3a 1.20 [0.07–19.6] 0.89   
ccRCC
 Yes 1.0    
 No 0.42 [0.13–1.33] 0.14   
Non ccRCC
 Yes 1.46 [0.44–4.86] 0.53   
 No 1.0    
Lymphovascular invasion
 Yes 1.0    
 No 1.19 [0.20–6.97] 0.84   
Necrosis on imaging
 Yes 1.0    
 No 0.41 [0.10–1.72] 0.22   
Necrosis in histology
 Yes 1.0   1.0  
 No 0.42 [0.16–1.12] 0.08 1.63 [0.44–6.05] 0.46
Leibovich score
 Low 1.0    
 Moderate 0.65 [0.16–2.60] 0.54   
 High 0.52 [0.12–2.18] 0.37   
High risk
 Yes 0.58 [0.13–2.65] 0.48   
 No 1.0    
Dose of isotope 0.99 [0.97–1.01] 0.83   
Number of injections 1.47 [0.57–3.80] 0.46   
Spillage
 Yes 1.0    
 No 1.84 [0.51–6.55] 0.34   
Depot properly injected
 Yes 1.0    
 No 0.96 [0.35–2.61] 0.93   
Anterior depot
 Yes 1.0    
 No 1.15 [0.38–3.45] 0.79   
Time between injection and early imaging 1.0 [1.0–1.0] 0.69   
Time between injection and late imaging 1.0 [1.0–1.0] 0.25   
Kidney/liver activity ratio at early scintigraphy 1.0 [0.99–1.00] 0.08 0.98 [0.95–1.01] 0.45
Kidney/liver activity ratio at late scintigraphy 1.0 [0.99–1.00] 0.05 1.02 [0.97–1.07] 0.37
Metastases
 Yes 1.0    
 No 0.96 [0.30–3.05] 0.96   
Death
 Yes 0.52 [0.22–1.23] 0.13   
 No 1.0    
  1. Numbers in italic are statistically significant p ≤ 0.05. BMI body mass index, SN sentinel node, ccRCC clear cell renal cell carcinoma, OR odds ratio