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Table 1 Questions R3 and R4, aimed to compare the degree of concern of respondents when the same results were expressed in terms of % excess and Time Needed to Harm (TNH). English translation from the Italian

From: Comparison of two statistical indicators in communicating epidemiological results to the population: a randomized study in a high environmental risk area of Italy

Question Indicatora  
R3 % excess From 2001 to 2006, death rates from cancer in Livorno-Collesalvetti were 4.5% higher than in Tuscany as a whole, with 620 overall deaths every year.
Please state your concern about this result on a scale ranging from 0 (no concern) to 10 (extremely concerned).
TNH From 2001 to 2006, we observed 1 more death from cancer every 13 day in Livorno-Collesalvetti relative to Tuscany as a whole.
Please state your concern about this result on a scale ranging from 0 (no concern) to 10 (extremely concerned).
R4 % excess From 2001 to 2006, we observed the following results in Livorno-Collesalvetti*:
a-The risk of death from sexual glands is 25% higher than in Tuscany, with an overall number of 13 deaths every year.
b- The risk of death from thyroid cancer is 60% higher than in Tuscany, with an overall number of 2 deaths every year.
c- The risk of death from lung cancer is 4% higher than in Tuscany, with an overall number of 27 deaths every year.
Please, tick which result is the most concerning and which one is the least concerning to you.
(*) results refer to women.
TNH From 2001 to 2006 we observed the following results in Livorno-Collesalvetti*:
a-one more death every 4 months and a half relative to Tuscany from sexual glands cancer.
b-one more death every 14 months and a half relative to Tuscany from thyroid cancer.
c- one more death every 12 months, relative to Tuscany from lung cancer.
Please, tick which result is the most concerning and which one is the least concerning to you.
(*) results refer to women.
  1. Notes: aThe average numbers of excess deaths reported in the questions are rounded to the closest integer