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Table 1 How similar were people in the two groups (reading a book in bed and not reading a book in bed) at the start of the trial? Data are numbers of people (%)

From: Does reading a book in bed make a difference to sleep in comparison to not reading a book in bed? The People’s Trialan online, pragmatic, randomised trial

People who took part in The Reading Trial Reading group (n=369) n (%) Not reading group (n=405) n (%)
Age
• 18–24 years 21 (6%) 28 (7%)
• 25–44 years 193 (52%) 209 (51%)
• 45–64 years 123 (33%) 145 (36%)
• 65 years and over 32 (9%) 23 (6%)
Gender
• Female 289 (78.3%) 325 (80.2%)
• Male 75 (20.3%) 78 (19.2%)
• Prefer not to say/self-describe 5 (1.3%) 2 (0.5%)
Understanding of randomised trials
• Good understanding 251 (68%) 278 (69%)
• Some understanding 101 (27%) 105 (26%)
• No understanding 17 (5%) 22 (5%)
Healthcare background
• Healthcare 238 (64.5%) 269 (66%)
• Not healthcare 131 (35.5%) 136 (34%)