Table 2. Baseline and 5-year-follow-up values of MCS and PCS.

	Baseline	5-year-follow-up
Mental component score (MCS) (Mean±SD)	45.8±10.3	47.9±10.2
Physical component score (PCS) (Mean±SD)	38.9±9.8	38.8±10.3

Component scores of 5-year follow up were chosen as outcome variables of multiple linear regression analyses (Table 3 and Table 4).