Table 1.

Characteristics of the included studies.

Authors	Country	Study Design	Number of Participants or Number of Paper Included	Year of Publication	Results	Quality Assessment
Benor D.J [15]	UK	Case report	Not applicable	1995	This study identified nutrition, exercise, relaxations (including music, art, and tai chi) as important methods for health maintenance and disease prevention among medical student.	7/10 *****
Kemper K et al. [16]	USA	Observational study	342	2011	Mind–body practices including meditation, prayer, yoga, tai chi, and qigong to reduce stress and anxiety in nurses.	5/9 *
Marshall D et al. [17]	Ireland	Clinical Trial	12	2018	A 12-session intervention of tai chi was administered to a group of healthcare workers. A significant increase in these individuals’ wellbeing was measured comparing pre- and post-intervention measurements.	0/5 ***
Palumbo M et al. [4]	USA	Clinical Trial	14	2012	The tai chi group registered significantly fewer absence rates and 3% increase in productivity. No significant differences in physical or mental health scores (SF-12) were detected.	1/5 ***
Steinberg B et al. [5]	USA	Clinical Trial	15	2017	A very short intervention resulted in significant improvements in sleep quality, stress levels, and nursing staff’s motivation in their work.	3/5 ***
Budhrani-Shani P et al. [9]	USA	Systematic review	83	2016	After a 15-week tai chi program, significant improvements in physical and mental health were recorded, along with a significative reduction in stress levels were highlighted and an improvement in trunk flexibility.	3/11 **

* Newcastle–Ottawa Scale, ** AMSTAR scale, *** Jadad scale, ***** CASE REPORT.