Table 2.

Anxiety outcome measures used by each study (N=10).

Study	Anxiety measure
	STAIa	DASS-Ab	HAMAc	VASd	HADSe	GAD-7f	Unspecified
Heller et al [52]					✓
Chan et al [62]		✓
Yang et al [63]						✓
Krusche et al [53]						✓
Loughnan et al [54]						✓
Dennis-Tiwary et al [58]		✓	✓
Sun et al [64]						✓
Scherer et al [51]	✓
Hanprasertpong et al [66]				✓
Jareethum et al [67]							✓

^aSTAI: State Trait Anxiety Inventory.

^bDASS-A: Depression Anxiety Stress Scale–Anxiety.

^cHAMA: Hamilton Anxiety Rating Scale.

^dVAS: Visual Analogue Scale.

^eHADS: Hospital Anxiety Depression Scale.

^fGAD-7: Generalized Anxiety Disorder–7.