Table 3 Regression coefficients using the mixed effect model for studies on probability discounting task.

From: A systematic review and meta-analysis on the clinical implications of probability discounting among individuals with Internet gaming disorder

Variable (continuous)

Coefficient (95% CI)

P

The percentage of female

0.009 (− 0.0003 to 0.018)

0.057

Age

− 0.07 (− 0.16 to 0.01)

0.08

Education

− 0.05 (− 0.15 to 0.05)

0.35

Maximum reward

0.00001 (0.00 to 0.00002)

0.04

Gaming duration

0.37 (− 0.06 to 0.80)

0.09

  1. CI, confidence interval.
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