Figure 1.
Non-linear risk estimates for the association between haematocrit and mortality.
Note. Risk estimates are adjusted for age, ethnicity, place of residence, education level, cigarette smoking (both current/former status and cumulative use), water-pipe smoking, nass chewing, opium use, body mass index, hypertension, and self-reported diabetes, ischemic heart disease, and cancer (variables as shown in Table 1)