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Fig. 2 | BMC Geriatrics

Fig. 2

From: Temporal changes in characteristics and external validity of randomized controlled trials in older people from 2012 to 2019

Fig. 2

Proportion of RCTs specifically designed for older people in 2012 and 2019 (A) and RCTs including a majority of older people in 2012 and 2019 (B). Pie chart showing the proportion of trials specifically designed for older people and trials including a majority of older people. A: Trials were classified as specifically designed for older people if minimum trial participant age ≥ 55 years, or if mean trial participant age ≥ 70 years. B: Trials were classified as including a majority of older people if mean trial participant age ≥ 60 years. Abbreviations: RCT, randomized controlled trial

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