Table 4

Characteristics of the data-sharing statements for articles with an intention to share individual patient data (including those with unclear intentions)

Articles in ICMJE-member journals
(n=77)
Articles in ICMJE-affiliated journals
(n=22)
Intention to share code
 Yes9 (12%; 6% to 22%)0
 No17 (22%; 14% to 33%)0
 Unclear51 (66%; 54% to 76%)22 (100%)
Intention to share other research data
 Yes6 (8%; 3% to 17%)7 (32%; 15% to 55%)
 No14 (18%; 11% to 29%)0
 Unclear57 (74%; 63% to 84%)15 (68%; 45% to 85%)
Intention to share any other documents
 Yes63 (82%; 71% to 89%)10 (46%; 25% to 67%)
 No1 (1%; 0.1% to 8%)0
 Unclear13 (17%; 10% to 28%)12 (54%; 33% to 75%)
Restriction of time for availability
 Yes34 (44%; 33% to 56%)10 (46%; 25% to 67%)
 No22 (29%; 19% to 40%)8 (36%; 18% to 59%)
 Unclear21 (27%; 18% to 39%)4 (18%; 6% to 41%)
Free access
 Yes7 (9%; 4% to 18%)1 (4%; 0.2% to 25%)
 No69 (90%; 80% to 95%)21 (96%; 75% to 99%)
 Unclear1 (1%; 0.1% to 8%)0
Possibility to use data for any type of purpose
 Yes7 (9%; 4% to 18%)1 (4%; 0.2% to 25%)
 No60 (78%; 67% to 86%)14 (64%; 41% to 82%)
 Unclear10 (13%; 7% to 23%)7 (32%; 15% to 55%)
Specific kind of access mechanism
 Yes68 (88%; 78% to 94%)21 (96%; 75% to 99%)
 No7 (9%; 4% to 18%)1 (4%; 0.2% to 25%)
 Unclear2 (3%; 0.5% to 10%)0
Reviewed by a committee that is independent of the sponsor/author?
 Yes18 (23%; 15% to 35%)4 (18%; 6% to 41%)
 No22 (29%; 19% to 40%)0
 Unclear37 (48%; 37% to 60%)18 (82%; 59% to 94%)
  • ICMJE, International Committee of Medical Journal Editors.