Table 4.

Mediation analysis

	Point estimate of indirect effect	95% CI ^
Physical Functioning	−2.73	−4.46, −1.27
Role Physical	−3.44	−5.50, −1.72
General Health	−3.31	−5.21, − 1.66
Vitality	− 4.48	−6.94, − 2.29
Social Functioning	− 4.57	−7.06, − 2.37
Physical Component Summary score	−0.98	− 1.65, −0.44

^: Bootstrap confidence interval: if the 95% confidence interval (CI) does not contain zero, the mediation (indirect effect) is significant. The analysis was adjusted by age, gender, marital status and employment status

Abbreviation: CI confidence interval