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. 2025 Aug 22;25:2899. doi: 10.1186/s12889-025-23746-5

Table 5.

Principal component analysisa for covariates

Rotated component matrix
Components
1 2
Lifetime deployment (accumulated days) .946
Number of previous deployments .912 .164
Age .580 .513
Rank .870
Length of mission -.173 -.554

Extraction Method: Principal Component Analysis

Rotation Method: Varimax with Kaiser Normalization

aRotation converged in 3 iterations