Table 1.

Summary of collected data at each time point according to SPIRIT 2013 guideline

TIME POINT	Enrolment HD1	1 week			1 week			1 week			1 week
		HD2	HD3	HD4	HD5	HD6	HD7	HD8	HD9	HD10	HD11	HD12	HD13
ENROLMENT
Eligibility screening	×
Informed consent	×
Allocation	×
INTERVENTIONS
Early-sequence
No-sound		×	×	×				×	×	×
Music					×	×	×
White noise											×	×	×
Later-sequence
No-sound		×	×	×				×	×	×
Music											×	×	×
White noise					×	×	×
ASSESSMENTS
Baseline information	×
VAS pain score		×	×	×	×	×	×	×	×	×	×	×	×
VAS anxiety score		×	×	×	×	×	×	×	×	×	×	×	×
STAI Y-1				×			×			×			×
STAI Y-2	×
BP and HR		×	×	×	×	×	×	×	×	×	×	×	×
S-AMY				×			×			×			×
Conditional information		×	×	×	×	×	×	×	×	×	×	×	×
Adverse events		×	×	×	×	×	×	×	×	×	×	×	×

Abbreviations: BP blood pressure, HD haemodialysis, HR heart rate, S-AMY salivary amylase activity, SPIRIT Standard Protocol Items: Recommendations for Interventional Trials, STAI State-Trait Anxiety Inventory, VAS Visual Analogue Scale