Table 4 Linear regressions predicting follow-up gambling spend (at T2) among baseline non-gambling participants

Variables – Step 1

B

98.75% CI

SE

β

t

p-value

 Constant

0.59

− 1.56, 2.73

0.83

0.708

.519

 DPM spending

0.40

0.05, 0.75

0.14

0.38

2.93

.005

 R2/Adj. R2

.142/.125

 F

8.59*

Variables—Step 2

B

98.75% CI

SE

β

t

p-value

 Constant

0.77

− 1.25, 2.79

0.78

0.99

.328

 DPM spending

0.04

− 0.42, 0.51

0.18

0.04

0.25

.801

 Loot Box spending

0.44

0.04, 0.83

0.15

0.48

2.88

.005

 R2/Adj. R2

.262/.233

 F

9.05*

Risky Loot Box Index

Variables

B

98.75% CI

SE

β

t

p-value

 Constant

2.79

1.57, 4.01

0.47

5.93

 <.001

 RLI score

1.27

0.40, 2.13

0.46

0.36

2.71

.008

 R2/Adj. R2

.128/.111

 F

7.68*