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EJNMMI Research

Table 4 Multivariate Cox proportional hazards models for event-free survival

From: Early response monitoring of neoadjuvant chemotherapy using [18F]FDG PET can predict the clinical outcome of extremity osteosarcoma

Characteristics

N (%)

Multivariate

RR

95% CI

p value

Model 1 (SUV2)

Histologic response

    

 Good

37 (51)

1

  

 Poor

36 (49)

3.74

1.03–13.65

0.046*

SUV2

    

 < 5.9

32 (44)

1

  

 ≥ 5.9

41 (56)

8.86

2.25–34.93

0.002*

Model 2 (Δ%SUV01)

Histologic response

    

 Good

37 (51)

1

  

 Poor

36 (49)

4.81

1.42–16.31

0.012*

Δ%SUV01

    

 <− 39.8%

30 (41)

1

  

 ≥− 39.8%

43 (59)

5.97

1.47–24.25

0.012*

Model 3 (Δ%SUV02)

Histologic response

    

 Good

37 (51)

1

  

 Poor

36 (49)

2.71

0.75–9.85

0.129

Δ%SUV02

    

 <− 54.1%

30 (41)

1

  

 ≥− 54.1%

43 (59)

6.00

1.16–30.91

0.032*

  1. *Statistically significant with p value < 0.05
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