Table 2

Data sharing in acupuncture randomised controlled trials

ItemsNo. (%) (95% CI, %)
Studies with data sharing statement(n=339)
 Yes66 (19.5) (15.6 to 24.0)
 Not mentioned273 (80.5) (76.0 to 84.4)
Data sharing details(n=66)
1. Will individual participant data be available?
 Yes49 (14.5) (11.1 to 18.6)
  No1 (0.3) (0.05 to 0.16)
 Not mentioned16 (4.7) (2.9 to 7.5)
2. What data in particular will be shared?
 The data used or analysed in the study61 (18.0) (14.3 to 22.4)
 Protocol and reporting checklist1 (0.3) (0.05 to 0.16)
 Not mentioned4 (1.2) (0.4 to 3.0)
3. What other documents will be available?
 Protocol11 (3.2) (1.8 to 5.7)
 Others (eg, adverse events, analytical code)10 (3.0) (1.6 to 5.3)
 Not mentioned45 (13.3) (10.1 to 17.3)
4. When will data be available (start and end dates)?
 With publication9 (2.7) (1.4 to 5.0)
 In a specific time4 (1.1) (0.5 to 3.0)
 Not mentioned53 (15.6) (12.2 to 19.9)
5. With whom?
 People with reasonable requests after approval30 (8.9) (6.3 to 12.4)
 Anyone12 (3.5) (0.2 to 6.1)
 Journal or non-commercial purposes researchers3 (0.9) (0.3 to 2.6)
 Not mentioned21 (6.2) (4.1 to 9.3)
6. For what types of analyses?
 Any proposals?3 (0.9) (0.3 to 2.6)
 Specific purpose (eg, methodologically, non-commercial)13 (3.8) (2.3 to 6.4)
 Not mentioned47 (13.9) (10.6 to 17.9)
7. By what mechanism will data be made available?
 Contact authors57 (16.8) (13.2 to 21.2)
 Open access link5 (1.5) (0.6 to 3.4)
 Not mentioned4 (1.2) (0.5 to 3.0)