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Table 1 General characteristics of included studies (n = 28)

From: Medical empirical research on forest bathing (Shinrin-yoku): a systematic review

Characteristic

Categories

No. (%)

Country or region

China

6 (21)

Korea

5 (18)

Japan

13 (46)

Poland

1 (4)

Taiwan

3 (11)

Research design

RCT

17 (61)

NRCT

11 (39)

Participant

Healthy people

17 (61)

People with health problems

11 (39)

Average age (years)

18 ≤

1 (3.5)

> 18 ≤ 30

12 (43)

> 30 ≤ 45

1 (3.5)

> 45

12 (43)

Age unknown

2 (7)

Sample size

≤ 20

8 (29)

> 20 ≤ 50

7 (25)

> 50

13 (46)

Time

3 days ≤

20 (71)

> 3 days

8 (29)

Ethical consideration

Yes

25 (89)

No

3 (11)

Interdisciplinary research

Yes

3 (11)

No

25 (89)