## 3 Results
### Near-Field Dose
#### 3.1.2 Near-Field Dose  
The highest dose rate (dose per 1 min) was found for calls on the mobile phone on the GSM network (without headset) with 191.88 mJ/kg/min and 24.66 mJ/kg/min followed by calls on the DECT phone (without eco mode) with 22.38 mJ/kg/min and 3.06 mJ/kg/min for brain and whole-body, respectively (Table 3). Considering all predictors, the brain near-field dose consisted mainly of the exposure from GSM mobile phone calls, on average 1451.78 mJ/kg/day (94.6%), followed by a dose of 74.10 mJ/kg/day (4.8%) from DECT phone calls (Table 3 and Figure 1). UMTS mobile phone calls counted for 8.04 mJ/kg/day (0.5%). Concerning the whole-body near-field dose, the largest part was induced by GSM mobile phone calls with a dose of 234.47 mJ/kg/day (73.3%). DECT phone calls contributed with a dose of 10.13 mJ/kg/day (3.2%). The dose contribution from mobile phone data traffic was 8.29 mJ/kg/day (2.6%) for data traffic via mobile internet connection and 22.03 mJ/kg/day (6.9%) for data traffic via WLAN connection. Using a computer, laptop and tablet connected to WLAN played a considerable role with a mean dose of 41.46 mJ/kg/day (13.0%).  
\begin{table}
\begin{tabular}{l l l l l l l l l l l l l l l l} \hline \hline  & \multicolumn{1}{c}{**Brain**} & \multicolumn{1}{c}{**Whole-Body**} & \multicolumn{1}{c}{**Esposure**} & \multicolumn{1}{c}{**Brain**} & \multicolumn{1}{c}{**Whole-Body**} & \multicolumn{1}{c}{**Bright Dose (mJkg/day)**} & \multicolumn{1}{c}{**Whole-Body**} & \multicolumn{1}{c}{**Whole-Body Dose (mJkg/day)**} \\
**Near-Field Predictor** & \multicolumn{1}{c}{**SAR (mWkg)**} & \multicolumn{1}{c}{**SAR**} & \multicolumn{1}{c}{**Duration**} & \multicolumn{1}{c}{**Dose Ratio**} & \multicolumn{1}{c}{**Dose Ratio**} & \multicolumn{1}{c}{**Dose Ratio**} & \multicolumn{1}{c}{**Brain Dose (mJkg/day)**} & \multicolumn{1}{c}{**Whole-Body Dose (mJkg/day)**} \\ \cline{3-14}  & & & & & & & & & & & & & & \\  & & (mWkg) & (mJkg/day) & (mJkg/day) & (mJkg/day) & & & & & & & & & & \\ \cline{3-14}  & **Value** & **Value** & **Mean (SD)** & **Value** & **Mean (\%)** & **Mean (\%)** & **Min** & **Median** & **Max** & **Mean (\%)** & **Min** & **Median** & **Max** \\ \hline GSM + mobile phone calls & 3.198 & 0.411 & 7.6 (13.0) & 191.88 & 24.66 & – & – & – & – & – & – & – & – & – & – \\ without headset & 3.198 & 0.411 & 1.9 (7.6) & 0.19 & 24.66 & – & – & – & – & – & – & – & – & – \\ GSM + mobile phone calls with & & & & & & & & & & & & & & & \\ headset & 0.003198 & 0.411 & 1.9 (7.6) & 0.19 & 24.66 & – & – & – & – & – & – & – & – & – \\ GSM + mobile phone calls & & – & – & 9.5 (16.7) & – & – & 1451.78 & & & & & & & & & \\ headset considered & & – & – & 9.5 (16.7) & – & – & (94.65) & 0.00 & 601.90 & 22587.02 & 234.47 & 0.00 & 85.14 & 3785.98 \\ UMTS mobile phone calls & & & & & & & & & & & & & & & \\ without headset & & 0.023 & 0.003 & 5.8 (14.8) & 1.38 & 0.18 & – & – & – & – & – & – & – & – \\ UMTS mobile phone calls with & & & & & & & & & & & & & & \\ headset & 0.000023 & 0.003 & 1.9 (8.1) & 0.001 & 0.18 & – & – & – & – & – & – & – & – & – \\ UMTS mobile phone calls & & & & & & & & & & & & & & \\ headerset considered & & – & – & 7.7 (19.9) & – & – & 8.04 (0.59x) & 0.00 & 2.57 & 217.49 & 1.39 (0.84x) & 0.00 & 0.37 & 34.20 \\ DETect phone calls without eco & & & & & & & & & & & & & & & \\ mode & 0.373 & 0.051 & – & 22.38 & 3.06 & – & – & – & – & – & – & – & – \\ DETect phone calls with eco & & & & & & & & & & & & & & \\ mode & 0.073 & 0.0851 & – & 2.24 & 0.31 & – & – & – & – & – & – & – & – \\ DETect phone calls once & & & & & & & & & & & & & & \\ considered & & – & – & 9.0 (10.9) & – & – & 74.10 (4.85x) & 0.00 & 18.70 & 1364.86 & 10.13 (3.27x) & 0.00 & 2.61 & 190.28 \\ Mobile phone data traffic & 0.000092 & 0.012 & 11.5 (22.5) & 0.01 & 0.72 & 0.06 (0.0004x) & 0.00 & 0.01 & 0.54 & 8.29 (2.65x) & 0.00 & 1.63 & 70.89 \\ Mobile phone near-field predictors.