Table 2 Differences in body mass index according to demographic characteristics of the cancer survivors (N = 4,553,669)

Age (years)

61.52 ± 0.43

59.94 ± 1.70

60.43 ± 0.86

62.77 ± 0.62

61.93 ± 0.79

60.61

62.32

< 0.001

Gender

Male

1,631,412 (35.8)

66,050 (4.1)

556,463 (34.4)

384,857 (23.0)

624,042 (38.6)

1,397,395

1,839,042

0.028

Female

2,922,257 (64.2)

135,801 (4.7)

1,097,716 (37.3)

803,179 (27.6)

885,561 (30.4)

2,572,305

3,250,685

Marital status

Single

106,965 (2.3)

23,513 (22.0)

43,575 (40.7)

7,822 (7.3)

32,055 (30.0)

59,972

153,957

< 0.001

Married

4,446,704 (97.7)

178,338 (4.0)

1,610,605 (36.2)

1,180,214 (26.5)

1,477,547 (33.2)

3,958,630

4,886,869

Education level

≤ Middle school

1,698,963 (37.3)

109,427 (6.4)

555,590 (32.7)

464,342 (27.3)

569,604 (33.6)

1,479,400

1,878,386

0.020

≥ High school

2,854,706 (62.7)

92,430 (3.3)

1,114,143 (39.0)

719,387 (25.2)

928,746 (32.5)

2,453,288

3,180,581

Economic activity

Yes

2,124,991 (46.7)

58,227 (2.7)

688,205 (32.4)

597,217 (28.1)

781,342 (36.8)

1,862,797

2,386,995

< 0.001

No

2,428,678 (53.3)

143,629 (5.9)

964,410 (39.7)

584,431 (24.1)

736,208 (30.3)

2,090,614

2,661,033

Household size

Single

476,419 (10.5)

33,311 (7.0)

199,401 (41.9)

114,092 (23.9)

129,615 (27.2)

381,389

571,447

0.076

≥ two

4,077,250 (89.5)

168,541 (4.1)

1,454,778 (35.7)

1,073,943 (26.3)

1,379,988 (33.9)

3,607,127

4,499,465

Household income

Lower-than-median

2,223,565 (48.8)

134,116 (6.1)

820,480 (36.9)

529,924 (23.8)

739,045 (33.2)

1,948,597

2,443,604

0.062

Higher-than-median

2,330,104 (51.2)

67,778 (2.9)

833,699 (35.8)

647,370 (27.8)

781,257 (33.5)

1,979,526

2,654,219