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Table 4 Relationship of various characteristics and depressive symptoms, chi-square test analyses of variance followed by Bonferroni adjustment (N = 13107)

From: Relationship between body mass index and depressive symptoms: the “fat and jolly” hypothesis for the middle-aged and elderly in China

Variables

CES-D < 10

CES-D ≥ 10

χ2

P

N (%)

N (%)

Gender

 Male

4313 (69.30)

1911 (30.70)

256.776

0.000

 Female

3834 (55.70)

3049 (44.30)

  

Age (years)

 45-49

1741 (68.44)

803 (31.56)

88.867

0.000

 50-54

1251 (64.99)

674 (35.01)

  

 55-59

1705 (62.71)

1014 (37.29)

  

 60-64

1358 (59.22)

935 (40.78)

  

 65-69

880 (58.16)

633 (41.84)

  

  ≥ 70

1212 (57.36)

901 (42.64)

  

Education

 Illiterate

1922 (52.41)

1745 (47.59)

366.146

0.000

 Less than elementary school

5082 (63.33)

2943 (36.67)

  

 High school

719 (78.67)

195 (21.33)

  

 Above vocational school

424 (84.63)

77 (15.37)

  

Marital status

 Single

835 (48.92)

872 (51.08)

146.294

0.000

 Married

7312 (64.14)

4088 (35.86)

  

Hukou

 Non-agricultural hukou

6268 (59.24)

4312 (40.76)

198.071

0.000

 Agricultural hukou

1879 (74.36)

648 (25.64)

  

Current residence

    

 Rural

4793 (58.01)

3470 (41.99)

163.867

0.000

 Urban

3354 (69.24)

1490 (30.76)

  

Smoke

 NO

4657 (59.28)

3199 (40.72)

69.383

0.000

 Former smoke

800 (67.17)

391 (32.83)

  

 Current smoke

2690 (66.26)

1370 (33.74)

  

Drinking

 NO

5201 (59.10)

3600 (40.90)

108.573

0.000

 Less than once a month

694 (66.67)

347 (33.33)

  

 More than once a month

2252 (68.97)

1013 (31.03)

  

Eating meals

  ≤ 2 meals per day

878 (50.32)

867 (49.68)

121.020

0.000

 3 meals per day

7129 (63.91)

4025 (36.09)

  

  ≥ 4 meals per day

140 (67.31)

68 (32.69)

  

Taking activities

 No

3783 (58.07)

2732 (41.93)

92.198

0.000

 Yes

4364 (66.20)

2228 (33.80)

  

Ever been in major accidental injury

 NO

7437 (62.88)

4391 (37.12)

26.610

0.000

 Yes

710 (55.51)

569 (44.49)

  

Self-report health status

 Very poor

779 (36.13)

1377 (63.87)

1210.827

0.000

 Poor

2735 (56.96)

2067 (43.04)

  

 Fair

3002 (71.61)

1190 (28.39)

  

 Good

1276 (82.54)

270 (17.46)

  

 Very good

355 (86.37)

56 (13.63)

  

Having regular physical exercises

 No physical exercise

5011 (61.59)

3125 (38.41)

11.765

0.003

 Less than regular physical exercises

1503 (61.02)

960 (38.98)

  

 Regular physical exercises

1633 (65.11)

875 (34.89)

  

BMI

 Underweight

442 (48.79)

464 (51.21)

113.589

0.000

 Average

4207 (60.77)

2716 (39.23)

  

 Overweight

2494 (65.86)

1293 (34.14)

  

 Obese

1004 (67.34)

487 (32.66)

  
  1. CESD: Center for Epidemiologic Studies- depressive symptoms scale
  2. BMI body mass index, BMI Categories include Underweight (–18.5 kg/m2)/Normal weight (18.5–24 kg/m2)/Overweight (24–28 kg/m2)/Obesity (28– kg/m2)
  3. Hukou: it is an important part of household registration in china and is strictly enforced.Non-agricultural hukou people primarily live in the city and work in factories, public institutions and other workplaces. They have no farm land but have the convenience of city life. Agricultural hukou people primarily live in villages and depend on agriculture and farming for their livelihood