Figure 2

Plasma levels of C-reactive protein (CRP) were measured in the mobile phone group and control group at baseline, 1, 2, 3 and 6 months. The sample size was 12 in the mobile phone group and 14 in the control group at each time point. *P < 0.05, **P < 0.01, ***P < 0.001compared with the baseline level of corresponding group. #P < 0.05 compared to the control group.