Characteristics of the study population in relation to dental status (n = 12871).

Upper socio-economic group (SEG) refers to participants in professional/intermediate band of the Registrar General Classification; Physical inactivity refers to participants in the lowest tertile; Obesity defined as body mass index ≥30 kg/m2; Poor self rated health refers to participants giving rating of bad/very bad; moderate alcohol defined as consuming >1<21 units per week. †C-reactive protein (CRP) measured in a sub-sample of participants (n = 6005).