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Table 2 Descriptive statistics of baseline characteristics of study participants by age at baseline, midlife and late-life

From: Independent and joint effects of body mass index and metabolic health in mid- and late-life on all-cause mortality: a cohort study from the Swedish Twin Registry with a mean follow-up of 13 Years

Characteristics

Age categories

Midlife (< = 65 years)

Late-life (> 65 years)

Mean / n

SD / %

Mean / n

SD / %

Number of participants (n)

6252

 

6215

 

Age at baseline, years (mean, SD)

59.6

4.18

73.1

5.93

Sex, Males/Females (n, %)

2754/3498

44.05/55.95

2897/3318

46.61/53.39

BMI, kg/m2 (mean, SD)

26.06

3.94

26.01

3.81

Systolic BP, mmHg (mean, SD)

134.99

18.33

147.30

20.84

Diastolic BP, mmHg (mean, SD)

82.67

10.52

81.57

10.64

Blood glucose, mmol/l (mean, SD)

  Non fasting (n = 387)

4.88

1.33

5.30

2.13

  Fasting (n = 400)

4.63

1.17

4.89

2.31

HbA1c, % (mean, SD)

4.75

0.65

4.90

0.69

Type II Diabetes (n, %)

300

4.82

555

8.98

Diabetic medication use (n, %)

223

3.57

401

6.46

Triglycerides, mmol/l (mean, SD)

  Non fasting (n = 506)

1.63

1.20

1.78

0.97

  Fasting (n = 11,016)

1.34

0.84

1.40

0.79

HDL cholesterol, Males/Females, mmol/l (mean, SD)

1.23/1.57

0.34/0.42

1.25/1.55

0.34/0.42

Lipid-lowering medication use (n, %)

695

11.16

875

14.14

Education, <  = 7 years/ > 7 years (n, %)

1553/4699

24.84/75.16

2742/3473

44.12/55.88

Ever smoker (n, %)

3943

63.07

3172

51.04

CVD (n, %)

2021

32.33

2900

46.66

BMI categories (n, %)

  Normal weight

2786

44.56

2677

43.07

  Overweight

2581

41.28

2701

43.46

  Obesity

885

14.16

837

13.47

  Metabolically unhealthy (n, %)

2304

36.85

2831

45.55

  No. of Metabolic abnormalities (mean, SD)

1.34

1.06

1.63

1.01

  Mortality (n, %)

733

11.72

3419

55.01

BMI * Metabolic Health Status (%)

  MHN

2178

34.84

1800

28.96

  MUN

608

9.72

877

14.11

  MHOw

1454

23.26

1282

20.63

  MUOw

1127

18.03

1419

22.83

  MHO

316

5.05

302

4.86

  MUO

569

9.10

535

8.61

Weight History (%)

  Normal weight

3259

56.19

2617

58.14

  Overweight

2107

36.33

1616

35.90

  Obesity

434

7.48

268

5.95

  1. Baseline characteristics are presented as means and standard deviations (SD) for continuous variables; and frequencies (n) and percentages (%) for categorical variables. Individuals with measures taken in mid-and late-life are presented separately
  2. Abbreviations: BMI body mass index, BP blood pressure, CVD history of cardiovascular disease or cardiovascular surgeries, MHS metabolic health status, MHN metabolically healthy normal weight, MUN metabolically unhealthy normal weight, MHOw metabolically healthy overweight, MUOw metabolically unhealthy overweight, MHO metabolically healthy obesity, MUO metabolically healthy obesity. Normal weight was defined as having BMI 18.5 – 24.9 kg/m2; overweight 25 – 29 kg/m2; obesity ≥ 30 kg/m2. Metabolically unhealthy status was defined as having ≥ 2 abnormal metabolic abnormalities. Metabolically healthy status was defined as having < 2 abnormal metabolic components
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BMC Public Health

ISSN: 1471-2458

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