Table 3

Path coefficients from mediation analysis for the effects of lower risk and lower exposure claims on susceptibility to use MRTPs

Perceived quantityPerceived risk
abccꞌMediated effectabccꞌMediated effect
Experiment 1
Adults (n=2352)
 Risk claim−0.17**−0.41**0.12*0.050.07**−0.14**−0.34**0.12**0.08*0.05**
 IQOS vs snus−0.28**−0.40**0.30**0.19**0.11**−0.21**−0.33**0.30**0.23**0.07**
 E-cig vs snus−0.40**−0.40**0.30**0.14**0.16**−0.29**−0.33**0.30**0.20**0.09**
Adolescents (n=480)
 Risk claim−0.28**−0.17**0.02−0.020.05**−0.23*−0.20**0.02−0.020.05*
 IQOS vs snus−0.21*−0.17**0.01−0.020.04**−0.18*−0.20**0.01−0.020.04*
 E-cig vs snus−0.33**−0.17**0.03−0.030.06**−0.35**−0.20**0.03−0.040.07**
Experiment 2
Adults (n=2445)
 Exposure claim−0.31**−0.29**0.06−0.030.09**−0.18**−0.31**0.060.010.06**
 IQOS vs snus−0.12*−0.27**0.31**0.27**0.03**−0.12*−0.30**0.31**0.27**0.04*
 E-cig vs snus−0.15**−0.27**0.27**0.23**0.04**−0.17**−0.30**0.27**0.22**0.05**
Adolescents (n=489)
 Exposure claim−0.39**−0.19**0.01−0.070.07**−0.19*−0.18**0.01−0.030.04*
 IQOS vs snus−0.21*−0.17**0.050.010.04*−0.21*−0.18**0.050.010.04*
 E-cig vs snus−0.20*−0.17**0.080.050.03*−0.21*−0.18**0.080.040.04*
  • a, path from independent variable to mediator. b, path from mediator to dependent variable. c, path from independent variable to dependent variable (total effect). c,c path adjusted for mediator (direct effect).

  • *p < .05, **p<0.001.