CRP and major depressive disorder: VAS general health (p=0.529), VAS dry eyes (p=0.361), VAS sandy feeling (p=0.343), VAS dry mouth (p=0.098), VAS sleep disturbance due to dryness (p=0.484), Zung depression score 37 (p=0.726), RAND (SF-36) mental component (p=0.790), ESR (p=0.200), CRP (p=0.453), Schirmer test (p=0.138), sialometry (p=0.632)