Table 4.

Analysis of stress in different subgroups.

Variables	K	n	SMD	95%-C	I2
Subjective stress	4	92	−0.05	−0.34, 0.24	0.0%
Physiological stress	7	334	0.03	−0.20, 0.27	51.4%
low immersion	5	141	0.16	−0.22, 0.54	60.6%
High immersion	5	285	−0.09	−0.29, 0.11	21.9%
Baseline/blank data available	7	333	0.01	−0.23, 0.24	46.5%
Post-test data available	3	93	0.07	−0.30, 0.43	46.7%