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Table 2 Association between WWI, BMI, WC, and all-cause mortality

From: Association of weight-adjusted waist index with all-cause mortality among non-Asian individuals: a national population-based cohort study

Exposure

number of participants/ number of events

Person-Years (years)

Model 1

HR (95% CI)

Model 2

HR (95% CI)

Model 3

HR (95% CI)

WWI (continuous)

1,065/18,592

90311.67

2.04 (1.90, 2.18)

1.28 (1.17, 1.39)

1.13 (1.03, 1.25)

WWI (quartile)

     

Q1

94/4,648

23937.33

Reference

Reference

Reference

Q2

191/4,648

23028.08

2.13 (1.66, 2.72)

0.97 (0.76, 1.25)

0.97 (0.75, 1.26)

Q3

303/4,648

22280.33

3.51 (2.79, 4.43)

1.08 (0.85, 1.38)

0.97 (0.75, 1.25)

Q4

477/4,648

21065.92

5.93 (4.75, 7.40)

1.39 (1.09, 1.77)

1.14 (0.88, 1.48)

P for trend

  

< 0.001

< 0.001

0.092

BMI (continuous)

1,065/18,592

90311.67

0.98 (0.97, 0.99)

0.99 (0.98, 1.00)

0.98 (0.97, 0.99)

BMI (quartile)

     

Q1

310/4,605

23465.08

Reference

Reference

Reference

Q2

273/4,641

22805.42

0.89 (0.75, 1.04)

0.64 (0.54, 0.75)

0.61 (0.51, 0.72)

Q3

258/4,637

22320.25

0.85 (0.72, 1.00)

0.67 (0.56, 0.79)

0.62 (0.52, 0.74)

Q4

214/4,689

21645.08

0.73 (0.61, 0.87)

0.76 (0.64, 0.91)

0.66 (0.55, 0.80)

P for trend

  

< 0.001

0.009

< 0.001

WC (continuous)

1,065/18,592

90311.67

1.01 (1.01, 1.01)

1.00 (0.99, 1.00)

0.99 (0.99, 1.00)

WC (quartile)

     

Q1

207/4,640

23672.17

Reference

Reference

Reference

Q2

257/4,654

22812.75

1.27 (1.06, 1.53)

0.71 (0.59, 0.86)

0.74 (0.61, 0.90)

Q3

294/4,632

22208.67

1.51 (1.26, 1.80)

0.66 (0.55, 0.79)

0.64 (0.53, 0.77)

Q4

307/4,666

21618.08

1.62 (1.36, 1.93)

0.82 (0.69, 0.98)

0.73 (0.60, 0.88)

P for trend

  

< 0.001

0.180

0.006

  1. Model 1: No covariates were adjusted. Model 2: Age, gender, race were adjusted. Model 3: Age, gender, race, education level, ratio of family income to poverty, alcohol drinking status, smoking status, stroke status, coronary heart disease status, renal failure status, liver diseases status, myocardial infarction status, and cancer status were adjusted
  2. Abbreviation Q, quartile; WWI, weight-adjusted-waist index; BMI, body mass index; WC, waist circumference