Rodgers (1996),10 USA | 0–4 years. Legislation | Child resistant packaging for prescription drugs 1974 | Time series 1964–92 | Mortality data. National Centre for Health Statistics | Mortality rate for prescription drugs declined from 3.5 per million in the late 1960s to <2 deaths per million in early 1990s. 460 fewer deaths between 1974–92 EffectiveGood/reasonable evidence |
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Liller et al (1998),11 USA | 5–9 years. School based | “More Health” poison prevention lesson and letters to parents | After study with control group I = 194 children C = 184 children | Knowledge. Parent reported behaviour | I had more knowledge of poisons compared with C, for example 99% of I recognised poison centre sticker compared with 31% of C Inconclusive. Reasonable/weak evidence |