Langzeitstudie: Kein Krebsrisiko wegen Handy-Nutzung (Forschung)

charles ⌂ @, Montag, 09.05.2016, 11:19 (vor 2934 Tagen) @ H. Lamarr

Die Vollständigkeit halber, es gibt auch andere Kommentare:
Na ja, Statistiken und Interpretationen.

From Lloyd Morgan, the Environmental Health Trust:

Chapman uses a classic technique of obfuscation. Instead of examining the annual percent incidence change per year of brain cancers located in the anatomical regions of the brain that absorb almost all of the radiation, and incidence among the brain cancers with the highest risk of brain cancer from cellphone use: glioblastoma multiforme (GBM) he switches the topic from annual percent change (APC) to a “what if” relative risk approach. SWITCH THE TOPIC, LOSE THE PICTURE

This “what if” approach has many false assumptions:
1. All regions of the brain are equally at risk. NOT TRUE.
a. Almost all the absorbed radiation is on the side of head where the cellphone is place to the ear and is in the frontal lobe, temporal lobe and cerebellum.
b. Zada et al’s analysis of California Cancer Registry APCs in these 3 regions are (from Table 3):
i. frontal lobe, APC=2.4%, p<0.001 (99.9% confidence);
ii. temporal lobe, APC=1.9%, p=0.026 (97% confidence), and;
iii. cerebellum, APC=11.9%, p<0.001 (99.9% confidence.
Because there are two lobes (left & write) these APCs would be about double if we knew which side of the head the cellphone was held.

2. The entire population was cellphone users from 1987 to 2014. NOT TRUE.
a. Chapman paper’s Fig. 1, “Percentage of Australians with mobile phone accounts.
i. Seven year after firs use, in 1993 only about 10% had cellphone accounts
1. No information is provided about the average hours of use
a. Did the authors ask ACMA if they had this data?
ii. Ten year after first use in 1996 about 20% had cellphone accounts (see 1.& a., above
iii. It was not until 2001 (15 years after first use) that >50% had cellphone accounts (15 of the 29 years in Fig. 1).
iv. Fig. 1 shows data for every year but there was NO DATA for 10 of these 15 years (1978-1990, 1992-1997) but the missing data were “estimated by linear interpolation.”
3. All ages use cellphones equally. NOT TRUE.
4. Both genders use cellphones equally. NOT TRUE.


In addition the Summary answers: section contradicts itself. “Age adjusted brain cancer incidence rates (20–84 years, per 100,000) have risen slightly in males (p < 0.05) ….” This sentence is contradicted several sentences later, “Significant increases in brain cancer incidence were observed … only in those aged ≥70 years ….” The value of “slightly’ is not stated but it was a statistically significant increase. The source of funding is not mention. Absence of funding information is a red flag. Best regards, Lloyd Morgan

Und eine von Katherine Smith:

Charles Claessens


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