Adjusted conditional logistic regression after exclusion of simplified questionnaires. CERENAT, 2004–2006, France
| Gliomas | Meningiomas | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| N* | Ca (n=190) | Co (n=378) | OR† (95% CI) | p Value‡ | N* | Ca (n=182) | Co (n=364) | OR§ (95% CI) | p Value‡ | |
| Regular mobile phone user | 568 | 0.16 | 546 | 0.56 | ||||||
| No | 67 | 153 | Reference | 106 | 200 | Reference | ||||
| Yes | 123 | 225 | 1.33 (0.89 to 1.98) | 76 | 164 | 0.89 (0.60 to 1.32) | ||||
| Time since first use (years) | 554 | 0.36 | 541 | 0.63 | ||||||
| Not regular user | 67 | 148 | Reference | 106 | 200 | Reference | ||||
| (1–4) | 47 | 105 | 1.04 (0.64 to 1.69) | 35 | 82 | 0.78 (0.48 to 1.28) | ||||
| (5–9) | 58 | 93 | 1.45 (0.91 to 2.33) | 31 | 65 | 0.96 (0.57 to 1.62) | ||||
| ≥10 | 14 | 22 | 1.45 (0.68 to 3.08) | 9 | 13 | 1.42 (0.56 to 3.55) | ||||
| Average calling time per month (hours) | 518 | <10−3 | 510 | 0.08 | ||||||
| Not regular user | 67 | 143 | Reference | 106 | 192 | Reference | ||||
| <2 | 36 | 78 | 1.01 (0.61 to 1.69) | 31 | 60 | 1.05 (0.60 to 1.81) | ||||
| (2–4) | 16 | 53 | 0.59 (0.29 to 1.21) | 13 | 47 | 0.45 (0.22 to 0.91) | ||||
| (5–14) | 33 | 47 | 1.78 (0.99 to 3.22) | 12 | 26 | 0.78 (0.36 to 1.68) | ||||
| ≥15 | 25 | 20 | 4.04 (1.84 to 8.86) | 11 | 12 | 2.02 (0.81 to 5.04) | ||||
| Cumulative duration of calls (hours) | 518 | 0.07 | 510 | 0.07 | ||||||
| Not regular user | 67 | 143 | Reference | 106 | 192 | Reference | ||||
| <43 | 22 | 50 | 0.93 (0.52 to 1.68) | 24 | 42 | 1.10 (0.60 to 2.04) | ||||
| (43–112) | 18 | 50 | 0.81 (0.43 to 1.54) | 14 | 39 | 0.71 (0.36 to 1.40) | ||||
| (113–338) | 27 | 46 | 1.43 (0.76 to 2.67) | 11 | 36 | 0.55 (0.26 to 1.16) | ||||
| (339–895) | 24 | 32 | 1.76 (0.93 to 3.32) | 5 | 19 | 0.56 (0.20 to 1.60) | ||||
| ≥896 | 19 | 20 | 2.54 (1.19 to 5.41) | 13 | 9 | 2.47 (0.99 to 6.19) | ||||
| Weighted cumulative duration of calls (hours) | 518 | 0.03 | 510 | 0.19 | ||||||
| Not regular user | 67 | 143 | Reference | 106 | 192 | Reference | ||||
| <29 | 19 | 55 | 0.73 (0.39 to 1.35) | 24 | 40 | 1.22 (0.64 to 2.31) | ||||
| (29–86) | 20 | 48 | 0.97 (0.52 to 1.78) | 14 | 44 | 0.56 (0.28 to 1.11) | ||||
| (87–326) | 31 | 47 | 1.56 (0.86 to 2.83) | 13 | 33 | 0.72 (0.36 to 1.46) | ||||
| (327–835) | 22 | 32 | 1.62 (0.84 to 3.14) | 5 | 17 | 0.57 (0.19 to 1.67) | ||||
| ≥836 | 18 | 16 | 2.83 (1.30 to 6.17) | 11 | 11 | 1.74 (0.69 to 4.41) | ||||
| Weighted cumulative number of calls | 520 | 0.14 | 515 | 0.59 | ||||||
| Not regular user | 67 | 145 | Reference | 106 | 194 | Reference | ||||
| <476 | 19 | 51 | 0.80 (0.43 to 1.47) | 24 | 38 | 1.18 (0.65 to 2.15) | ||||
| (476–1649) | 26 | 49 | 1.26 (0.70 to 2.28) | 17 | 45 | 0.70 (0.37 to 1.31) | ||||
| (1650–6269) | 35 | 50 | 1.71 (0.95 to 3.09) | 13 | 34 | 0.74 (0.36 to 1.51) | ||||
| (6270–14 699) | 11 | 25 | 1.14 (0.52 to 2.53) | 7 | 19 | 0.63 (0.23 to 1.68) | ||||
| ≥14 700 | 20 | 22 | 2.11 (1.03 to 4.33) | 8 | 10 | 1.30 (0.43 to 3.89) | ||||
Non-weighted average number of calls per day, and cumulative number of calls, are previously presented only for detailed questionnaire respondents in table 3.
*Data available for analysis.
†OR for each indicator adjusted for level of education and ionising radiation exposure.
‡p Values for global test.
§OR for each indicator adjusted for level of education.
Ca, Cases; Co, controls.