Table 3.

Studies reporting adverse effects.

Study (year)	Participants in the exposure group, n	Adverse effect described
Maltby et al (2002) [42]	20	Dropout due to cybersickness (n=1)
Reger et al (2016) [43]	52	Worsened symptoms of posttraumatic stress disorder (n=1)
Botella et al (2016) [44]	32	An unspecified number of participants reported tiredness, dizziness, or back pain, prompting a change in hardware
Krijn et al (2007) [45]	29	Dropout due to simulator sickness (n=1)
Levy et al (2016) [46]	9	“Walked carelessly” after therapy, judged to be at risk of falling (n=1)
Gujjar et al (2019) [47]	15	Mean increase in cybersickness rating post virtual reality
Kim et al (2020) [48]	32	Anxiety scores increased halfway through treatment (session 4) and then decreased