Mobile phone use among regular users (n=417/757 gliomas strata; n=253/582 meningiomas strata). CERENAT, 2004–2006, France
| Gliomas | Meningiomas | |||||||
|---|---|---|---|---|---|---|---|---|
| Cases (n=143) | Controls (n=274) | Cases (n=80) | Controls (n=173) | |||||
| n | Median (IQR) | n | Median (IQR) | n | Median (IQR) | n | Median (IQR) | |
| Time since first use (years) | 138 | 6.0 (4.0, 8.9) | 270 | 5.3 (3.5, 7.4) | 79 | 5.3 (3.3, 7.3) | 169 | 4.9 (3.3, 7.2) |
| Calling time per month (hours) | 124 | 5.0 (1.5, 13.0) | 237 | 2.5 (1.1, 6.0) | 71 | 2.0 (1.0, 9.0) | 154 | 2.4 (1.3, 5.0) |
| Number of calls per day* | 111 | 2.9 (0.7, 7.0) | 197 | 1.5 (0.7, 5.0) | 69 | 0.9 (0.4, 4.0) | 146 | 1.5 (0.5, 4.0) |
| Cumulative lifetime duration of calls (hours) | 124 | 210 (63, 602) | 237 | 106 (34, 338) | 71 | 66 (25, 504) | 154 | 96 (35, 237) |
| Weighted cumulative lifetime duration of calls (hours)* | 110 | 176 (55, 490) | 198 | 79 (26, 318) | 67 | 66 (15, 320) | 145 | 69 (25, 154) |
| Cumulative lifetime number of calls* | 111 | 2880 (816, 8316) | 197 | 1980 (684, 7020) | 69 | 1044 (344, 4800) | 146 | 1572 (548, 5220) |
| Weighted cumulative lifetime number of calls* | 111 | 2846 (640, 7280) | 197 | 1575 (448, 6030) | 69 | 1104 (216, 5280) | 146 | 1165 (432, 4080) |
*Only for detailed questionnaire respondents.