Table 4 Association between the absolute changes of BMI and WC and the prevalence of MetS.

From: Four-years change of BMI and waist circumference are associated with metabolic syndrome in middle-aged and elderly Chinese

 

Absolute changes in BMI

Absolute changes in WC

Model 1

Model 2

Model 1

Model 2

Total (N = 3697)

1st quartile(low)

0.407(0.320,0.519)***

0.411(0.322,0.526)***

0.247(0.190,0.321)***

0.250(0.191,0.326)***

2nd quartile

0.476(0.377,0.601)***

0.488(0.385,0.619)***

0.397(0.314,0.501)***

0.409(0.323,0.518)***

3rd quartile

0.657(0.528,0.818)***

0.677(0.541,0.845)***

0.605(0.488,0.749)***

0.622(0.501,0.774)***

4th quartile(high)

Reference

Reference

Reference

Reference

p-trend

1.366(1.265,1.475)***

1.359(1.257,1.469)***

1.590(1.468,1.722)***

1.58(1.457,1.713)***

Male (N = 1988)

1st quartile(low)

0.300(0.203,0.442)***

0.302(0.204,0.448)***

0.168(0.106,0.266)***

0.170(0.107,0.270) ***

2nd quartile

0.376(0.261,0.542)***

0.381(0.264,0.551)***

0.307(0.209,0.450)***

0.307(0.209,0.450)***

3rd quartile

0.483(0.343,0.681)***

0.474(0.336,0.670)***

0.582(0.423,0.801)***

0.570(0.413,0.786)***

4th quartile(high)

Reference

Reference

Reference

Reference

p-trend

1.519(1.342,1.721)***

1.512(1.334,1.715)***

1.810(1.586,2.066)***

1.805(1.579,2.063)***

Female (N = 1709)

1st quartile(low)

0.506(0.370,0.692) ***

0.486(0.354,0.667) ***

0.319(0.229,0.444)***

0.303(0.217,0.424)***

2nd quartile

0.585(0.431,0.794)***

0.554(0.407,0.755)***

0.505(0.372,0.685)***

0.497(0.365,0.676)***

3rd quartile

0.676(0.501,0.911)*

0.667(0.493,0.902)**

0.643(0.480,0.861)**

0.653(0.486,0.877)**

4th quartile(high)

Reference

Reference

Reference

Reference

p-trend

1.252(1.133,1.383)***

1.273(1.151,1.409)***

1.442(1.302,1.598)***

1.466(1.322,1.626)***

  1. BMI: body mass index; WC: waist circumference; HR: hazard ratio; 95% CIs confidence intervals.
  2. Model 1: unadjusted.
  3. Model 2: adjusted for age, sex (total subgroup), education levels, marital status, current residence, smoking, alcohol drinking, taking activities, having regular exercise, and chronic disease.
  4. *P < 0.05, **P < 0.01, ***P < 0.001.
  5. The cutoff values of absolute changes in BMI in males: < − 0.611 kg/m2, − 0.611 to < 0.183 kg/m2, 0.183 to < 1.007 kg/m2, ≥ 1.007 kg/m2.
  6. The cutoff values of absolute changes in BMI in females: < − 0.511 kg/m2, − 0.511 to < 0.326 kg/m2, 0.326 to < 1.275 kg/m2, ≥ 1.275 kg/m2.
  7. The cutoff values of absolute changes in BMI in total: < − 0.569 kg/m2, − 0.569 to < 0.251 kg/m2, 0.251 to < 1.128 kg/m2, ≥ 1.128 kg/m2.
  8. The cutoff values of absolute changes in WC in males: < − 3.0 cm, − 3.0 to < 1.0 cm, 1.0 to < 4.8 cm, ≥ 4.8 cm.
  9. The cutoff values of absolute changes in WC in females: < − 2.4 cm, − 2.4 to < 1.9 cm, 1.9 to < 5.8 cm, ≥ 5.8 cm.
  10. The cutoff values of absolute changes in WC in total: < − 2.7 cm, − 2.7 to < 1.3 cm, 1.3 to < 5.3 cm, ≥ 5.3 cm.
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