Table 6 Stratified analysis of relationship between weight change and hypertension by BMI at 25 years (N=14 635)

From: Relations of body weight status in early adulthood and weight changes until middle age with hypertension in the Chinese population

 

BMI at 25 years, kg m −2

 

<18.5

18.5–20.9

21–23.9

⩾24

Weight change, kg

Cases (%)

OR (95% CI)

Cases (%)

OR (95% CI)

Cases (%)

OR (95% CI)

Cases (%)

OR (95% CI)

<−7.5

—

—

9 (14.3)

0.95 (0.44–2.05)

51 (12.1)

0.67 (0.48–0.95)

94 (19.6)

0.45 (0.32–0.63)

−7.5~−2.6

1 (4.0)

0.31 (0.04–2.54)

45 (11.7)

0.86 (0.58–1.26)

142 (13.3)

0.87 (0.68–1.11)

115 (21.0)

0.63 (0.46–0.86)

−2.5~2.5

12 (7.0)

1.00 (reference)

96 (11.0)

1.00 (reference)

184 (14.7)

1.00 (reference)

130 (29.8)

1.00 (reference)

2.6~7.5

27 (9.1)

1.35 (0.65–2.83)

189 (16.7)

1.73 (1.31–2.27)

288 (23.9)

1.82 (1.47–2.25)

113 (36.1)

1.31 (0.94–1.81)

7.6~12.5

49 (14.0)

2.28 (1.14–4.56)

242 (21.5)

2.08 (1.59–2.73)

341 (32.4)

2.71 (2.19–3.35)

124 (47.5)

2.24 (1.60–3.15)

>12.5

161 (29.4)

4.71 (2.46–9.01)

491 (36.4)

4.11 (3.19–5.30)

480 (46.5)

5.02 (4.08–6.18)

141 (55.7)

3.06 (2.17–4.32)

  1. Abbreviations: BMI, body mass index; CI, confidence interval; OR, odds ratio.
  2. OR adjusted for age, sex, urbanization, education level, smoking status, drinking status, family history of hypertension and BMI at 25 years of age as a continuous variable.
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