Table 2.

Adherence to individual TIDieR items

	Sample 1 % reporting among sample of placebo-controlled trials published in top journals (n=94)	Sample 2 % reporting among sample of placebo-controlled trials (n=100)	Sample 3 % reporting among placebo-controlled trials that reported using TIDieR (n=6)
Mentioned using TIDieR	0	0	100
TIDieR item
Brief name	100	98	100
Why	8.5	7	16.7
What (materials)	68.1	60	33.3
What (procedures)	92.6	65	100
Who provided	45.7	59	83.3
How	68.1	82	83.3
Where	68.1	63	100
When and how much	97.9	89	100
Tailoring	59.6	15	50
Modifications	25.5	4	33.3
How well (planned adherence/fidelity assessment)	55.3	20	33.3
How well (actual adherence/fidelity)	54.3	12	33.3
Addressed all TIDieR items	0	0	0
Mean number of items addressed	7.5 (SD 1.8)	5.7 (SD 1.7)	7.7 (SD 2.5)

SD= standard deviation