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Table 1 Overview of all participants’ information

From: Physical exercise and aggressive behavior in rural left-behind children: the mediating roles of psychological capital and self-control

 

Total

(N = 453)

Fifth grade

(N = 58)

Sixth grade

(N = 99)

Seventh grade

(N = 66)

Eighth grade

(N = 103)

Ninth grade

(N = 127)

Age

12.58

10.36

11.42

12.24

13.17

14.20

Gender

      

 Boy

231 (51.0%)

31 (53.4%)

67 (67.7%)

30 (45.5%)

45 (43.7%)

58 (45.7%)

 Girl

222 (49.0%)

27 (46.6%)

32 (32.3%)

36 (54.5%)

58 (56.3%)

69 (54.3%)

Only Child

      

 No

224 (49.4%)

26 (44.8%)

44 (44.4%)

33 (50.0%)

49 (47.6%)

72 (56.7%)

 Yes

229 (50.6%)

32 (55.2%)

55 (55.6%)

33 (50.0%)

54 (52.4%)

55 (43.3%)

Left-behind Types

      

 Father absence

257 (56.7%)

29 (50.0%)

61 (61.6%)

42 (63.6%)

59 (57.3%)

66 (52.0%)

 Mother absence

77 (17.0%)

13 (22.4%)

17 (17.2%)

11 (16.7%)

13 (12.6%)

23 (18.1%)

 Both absence

119 (26.3%)

16 (27.6%)

21 (21.2%)

13 (19.7%)

31 (30.1%)

38 (29.9%)

Duration of Parental Absence

      

 Less than half a year

119 (26.3%)

9 (7.6%)

32 (26.9%)

16 (13.4%)

21 (17.6%)

41 (34.5%)

 Half a year to one year

121 (26.7%)

9 (7.4%)

29 (24%)

15 (12.4%)

40 (33.1%)

28 (23.1%)

 One to two years

63 (13.9%)

11 (17.5%)

12 (19.0%)

13 (20.6%)

9 (14.3%)

18 (28.6%)

 More than two years

150 (33.1%)

29 (19.3%)

26 (17.3%)

22 (14.7%)

33 (22%)

40 (26.7%)

Frequency of Returning Home

      

 Once a month

4 (0.9%)

2 (50.0%)

2 (50.0%)

0 (0.00%)

0 (0.00%)

0 (0.00%)

 Once every half year

339 (74.8%)

36 (10.6%)

77 (22.7%)

48 (14.2%)

81 (23.9%)

97 (28.6%)

 Once a year or longer

110 (24.3%)

20 (18.2%)

20 (18.2%)

18 (16.4%)

22 (20.0%)

30 (27.3%)

Caregiver

      

 Father

28 (6.2%)

4 (14.3%)

6 (21.4%)

3 (10.7%)

5 (17.9%)

10 (35.7%)

 Mother

208 (45.9%)

24 (11.5%)

44 (21.2%)

36 (17.3%)

46 (22.1%)

58 (27.9%)

 Grandparents

200 (44.2%)

27 (13.5%)

45 (22.5%)

23 (11.5%)

51 (25.5%)

54 (27.0%)

 Elder brothers and sisters

7 (1.5%)

1 (14.3%)

2 (28.6%)

2 (28.6%)

0 (0.0%)

2 (28.6%)

 Yourself

10 (2.2%)

2 (20.0%)

2 (20.0%)

2 (20.0%)

1 (10.0%)

3 (30.0%)