Table 6 Evaluation results of independent variable Multicollinearity.

From: Epidemiological attribution of knee and ankle injuries in firefighters

Variable category

Variable code

Variable name

VIF value

Pearson correlation coefficient (with highly correlated variables)

Collinearity diagnostic criteria

Judgment of results

Training Schedule

A2

Training load parameters

1.85

Correlation with A3 (training load) r = 0.42

VIF < 5, r < 0.7 No collinearity

No collinearity

 

A3

Training load

1.92

Correlates with A2 (training load parameter) r = 0.42

VIF < 5, r < 0.7 No collinearity

No collinearity

Training conditions

B2

Training shoes

1.78

With B4 (a set of Homo sapiens protective equipment) r = 0.38

VIF < 5, r < 0.7 无共线性

No collinearity

 

B4

Personal protective equipment for Homo sapiens

1.81

With B2 (training footwear) r = 0.38

VIF < 5, r < 0.7 无共线性

No collinearity

Damage knowledge

C1

Knowledge of injury prevention and treatment

1.67

Correlation with C3 (Lecture/Case Understanding of Injury) r = 0.45

VIF < 5, r < 0.7 No collinearity

No collinearity

Other variables (A1, A4, A5, A6, A7, B1, B3, C2, C4)

-

-

1.52–1.89

r < 0.40 (with all variables)

VIF < 5, r < 0.7 indicates no collinearity.

No collinearity