Review Question - QID 213737

A 50-year-old man arrives at the dermatology clinic complaining of “scaly spots” on his scalp. Over the past few months, he tried using a variety of moisturizers, but the lesions did not resolve. On the scalp vertex, there are multiple gritty macules with an erythematous base and overlying scale. The patient is diagnosed with actinic keratoses, and he elects for cryotherapy. He then asks about nicotinamide, an oral supplement that can be used to prevent the development of actinic keratoses. The patient is worried because he heard nicotinamide can cause flushing and he wants to know his risk of developing this side effect. A cohort study was conducted that compared the risk of developing flushing in those exposed to nicotinamide compared to those who were not exposed. In the study, there were 140 patients that received nicotinamide and 105 patients who did not receive nicotinamide. The study’s conclusion states that the relative risk for developing flushing in the patients who took nicotinamide was 1.0. Which of the following statements is true regarding the study?