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Question 10: A recent study investigated the association between relative deprivation and road traffic injuries (RTIs) among males aged 15-24 years of age. The researchers used data from the census as the denominator, and hospitalisations resulting from road traffic crashes were used as their numerator. All data were assigned a deprivation score and the researchers reported results for the 'least deprived' and 'most deprived' groups. Using the 'most deprived' population as the Exposure group, the researchers reported that the rate ratio (i.e. relative risk) for RTIs among males aged 15-24 years was 0.75 (Note that RR = EGO/CGO). Its interpretation is that: 1. a) The hospitalisation rate for RTIs in the least deprived area was 0.75 of the rate for the most deprived areas 2. b) Males living in the most deprived areas were 25% less likely to be hospitalised for a RTI than males living in the least deprived areas 3. c) There was a risk difference of 25% between the most deprived and least deprived areas 4. d) Males living in the least deprived areas were 25 times less likely to be hospitalised for a RTI than males living in the most deprived areas 5. e) The absolute degree of inequalities for RTIs was 0.75