Table 3 Adjusted odds ratios (95% confidence interval) of the multinomial logistic regression of weight status among the participants aged ≥40 years in Taiwan, n = 62,965

  Q1

1

1

1

  Q2

0.89 (0.78, 1.02)

0.96 (0.91, 1.02)

0.92 (0.85, 0.98)*

  Q3

0.92 (0.80, 1.05)

1.00 (0.95, 1.06)

0.91 (0.85, 0.98)**

  Q4

0.80 (0.70, 0.92)**

0.92 (0.87, 0.97)**

0.82 (0.77, 0.89)***

  Q5

0.92 (0.79, 1.07)

0.91 (0.85, 0.97)**

0.85 (0.78, 0.92)***

   P-trend

0.059

< 0.001

< 0.001

  Q1

1

1

1

  Q2

0.88 (0.77, 1.01)

1.04 (0.98, 1.10)

1.08 (1.00, 1.16)

  Q3

0.88 (0.77, 1.00)*

1.18 (1.11, 1.24)***

1.25 (1.16, 1.34)***

  Q4

0.78 (0.67, 0.90)***

1.29 (1.22, 1.37)***

1.42 (1.31, 1.53)***

  Q5

0.81 (0.69, 0.95)**

1.50 (1.40, 1.59)***

1.94 (1.79, 2.10)***

   P-trend

< 0.001

< 0.001

< 0.001

  Q1

1

1

1

  Q2

0.89 (0.78, 1.02)

0.97 (0.92, 1.03)

0.93 (0.86, 1.00)*

  Q3

0.91 (0.80, 1.05)

1.01 (0.95, 1.07)

0.92 (0.85, 0.99)*

  Q4

0.80 (0.69, 0.92)**

0.93 (0.88, 0.98)*

0.84 (0.78, 0.91)***

  Q5

0.92 (0.79, 1.07)

0.92 (0.86, 0.98)**

0.87 (0.80, 0.94)***

   P-trend

0.050

0.003

< 0.001

  Q1

1

1

1

  Q2

0.88 (0.77, 1.01)

1.04 (0.98, 1.11)

1.08 (1.00, 1.17)*

  Q3

0.88 (0.77, 1.00)*

1.18 (1.12, 1.24)***

1.25 (1.17, 1.35)***

  Q4

0.78 (0.67, 0.90)***

1.29 (1.22, 1.37)***

1.41 (1.31, 1.53)***

  Q5

0.82 (0.70, 0.96)*

1.48 (1.39, 1.58)***

1.92 (1.77, 2.08)***

   P-trend

0.002

< 0.001

< 0.001