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Table 1 Descriptive information by sex

From: Body mass index and healthcare costs: using genetic variants from the HUNT study as instrumental variables

Variable

Category

Males & females

Sex

Male

Female

N (%)

N (%)

N (%)

Total

 

60,786 (100.0)

28,136 (100.0)

32,650 (100.0)

Age

18–24

4090 (6.9)

1843 (6.7)

2247 (6.6)

25–44

18,506 (30.4)

8587 (30.4)

9919 (30.5)

45–66

26,389 (42.4)

12,553 (43.4)

13,836 (44.6)

67–79

9554 (16.2)

4256 (15.7)

5298 (15.1)

80+

2247 (4.1)

897 (3.7)

1350 (3.2)

Missing

0 (0.0)

0 (0.0)

0 (0.0)

Marital Status

Married/ Registered partner

34,225 (54.5)

16,432 (56.3)

17,793 (58.4)

Unmarried

15,938 (23.3)

8321 (26.2)

7617 (29.6)

Divorced/separated

5786 (10.1)

2475 (9.5)

3311 (8.8)

Widow/Widower

4749 (11.9)

866 (7.8)

3883 (3.1)

Missing

88 (0.1)

42 (0.1)

46 (0.1)

Education

Primary school

14,362 (25.7)

5978 (23.6)

8384 (21.2)

Secondary school

31,114 (46.2)

16,027 (51.2)

15,087 (57)

Higher Education. short

12,584 (25.0)

4420 (20.7)

8164 (15.7)

Higher Education. long

2571 (2.8)

1651 (4.2)

920 (5.9)

Missing

155 (0.3)

60 (0.3)

95 (0.2)

Urbanity

Urban

39,362 (64.8)

18,197 (64.8)

21,165 (64.7)

Rural

21,124 (34.6)

9825 (34.8)

11,299 (34.9)

Missing

300 (0.6)

114 (0.5)

186 (0.4)

Smoking status

Smoker

13,141 (23.1)

5589 (21.6)

7552 (19.9)

Former smoker

18,347 (27.2)

9474 (30.2)

8873 (33.7)

Never smoker

25,184 (43.4)

11,030 (41.4)

14,154 (39.2)

Missing

4114 (6.3)

2043 (6.8)

2071 (7.3)

BMI categorya

Underweight

373 (0.9)

82 (0.6)

291 (0.3)

Normal weight

20,451 (38.8)

7777 (33.6)

12674 (27.6)

Overweight

26,612 (37.3)

14,431 (43.8)

12,181 (51.3)

Class I Obesity

10,243 (16.5)

4869 (16.9)

5374 (17.3)

Class II Obesity

3107 (6.5)

977 (5.1)

2130 (3.5)

Missing

0 (0.0)

0 (0.0)

0 (0.0)

  1. aThe BMI-categories were defined as follows: Underweight = BMI < 18.5, normal weight = BMI: 18.5–24.9, overweight = BMI: 25.0–29.9, class I obesity = BMI: 30.0–34.9, and class II obesity = BMI ≥35.0