15-year cause of death.

Data expressed as mean ± SD or number and (%). P value represents overall P value for the trend by χ2 test. Abbreviations: OPG, osteoprotegerin; CKD, chronic kidney disease; CVD cardiovascular disease; CHD coronary heart disease, COPD, chronic obstructive pulmonary disease. *Disease specific multiple cause of deaths numbers do not add up to total mortality as multiple causes of death are possible. 15-year cause of death.