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Table 4 Determinants of HSCL-10--scores: contributions of each variable block to changes in R2

From: Predictors of mental distress among substance abusers receiving inpatient treatment

Determinant

R 2

ΔR2

F

df

ΔF

Sig ΔF

Block 1: Demographics

0.081

0.081

2.628

6,178

2.628

0.018

Block 2: Previous psychiatric treatment

0.174

0.092

6.507

9,175

4.083

0.001

Block 3: Substance abuse severity

0.319

0.146

12.258

12,172

6.718

0.001

  1. A hierarchical multiple regression strategy was used in which blocks of variables were added to the regression equation sequentially. R2, F and df refer to the overall regression equation after each block has been entered into the model; ΔR2, ΔF, and significance ΔF describe the contributions of each individual block.