Table 5 Association of TCMC type and significant influencing factors (results of the stepwise logistic regression)

Model 1: Outcome: Qi-deficiency constitution

Log-likelihood = 1233.24, chi-square = 69.61(4 d.f.), p < 0.001

Age

0.73

0.12

0.57–0.93

0.009

State of health

2.47

0.14

1.87–3.25

<0.001

Exercise regularly

0.61

0.14

0.47–0.80

<0.001

Model 2: Outcome: Phlegm-wetness constitution

Log-likelihood = 1139.32, chi-square = 62.45(4 d.f.), p < 0.001

BMI

1.58

0.10

1.29–1.92

<0.001

Education

1.18

0.07

1.03–1.35

0.015

State of health

2.05

0.15

1.53–2.75

<0.001

Exercise regularly

0.64

0.14

0.49–0.85

0.002

Model 3: Outcome: Yang-deficiency constitution

Log-likelihood = 1162.98, chi-square = 37.17(3 d.f.), p < 0.001

BMI

0.65

0.11

0.52–0.80

<0.001

Reproductive history

0.72

0.15

0.54–0.97

0.028

State of health

1.76

0.15

1.32–2.34

<0.001

Model 4: Outcome: Yin-deficiency constitution

Log-likelihood = 764.97, chi-square = 34.43(3 d.f.), p < 0.001

Age

0.68

0.17

0.49–0.95

0.025

Working nature

1.44

0.13

1.13–1.84

0.003

State of health

2.19

0.18

1.53–3.12

<0.001

Model 5: Outcome: Blood-stasis constitution

Log-likelihood = 1187.83, chi-square = 38.95(3 d.f.), p < 0.001

Age

0.73

0.13

0.57–0.93

0.011

State of health

2.17

0.15

1.61–2.91

<0.001

Exercise regularly

0.75

0.14

0.57–0.97

0.047

Model 6: Outcome: Qi-depressed constitution

Log-likelihood = 1070.83, chi-square = 84.79(4 d.f.), p < 0.001

Age

0.59

0.14

0.45–0.77

<0.001

Emotional status

1.39

0.08

1.20–1.62

<0.001

State of health

2.89

0.17

2.09–4.01

<0.001

Exercise regularly

0.74

0.15

0.55–1.00

0.049

Model 7: Outcome: Wetness-heat constitution

Log-likelihood = 442.10, chi-square = 12.70(2 d.f.), p < 0.001

Age

0.61

0.21

0.41–0.92

0.019

Exercise duration

0.79

0.12

0.63–0.99

0.038

Model 8: Outcome: Normality Constitution

Log-likelihood = 849.17, chi-square = 56.09(4 d.f.), p < 0.001

Age

1.51

0.16

1.11–2.05

0.009

Education

0.80

0.09

0.67–0.94

0.008

State of health

0.37

0.17

0.26–0.52

<0.001

Alcohol use

0.45

0.39

0.21–0.97

0.040