Table 3 Logistic regression analysis of regular breakfast consumption among medical students

Gender (n=6038)

<0.01

<0.01

 Male

1.00

reference

1.00

reference

 Female

0.43

0.38-0.48

2.20

1.93-2.506

Ethnicity (n=6038)

0.05

0.23

 Han ethnicity

1.00

reference

1.00

reference

 Mongolian ethnicity

1.34

1.06-1.71

0.90

0.78-1.05

 Other ethnicity

1.35

1.04-1.74

0.85

0.66-1.10

Class years of education (n=6038)

<0.01

<0.01

 1

1.00

reference

1.00

reference

 2

0.58

0.51-0.67

0.68

0.58-0.79

 3

0.68

0.59-0.79

0.78

0.66-0.94

 4

0.50

0.39-0.65

0.68

0.50-0.91

 5

1.43

0.81-2.51

1.34

0.74-2.43

Monthly expenses (n=6022)

<0.01

<0.01

 <300

1.00

reference

1.00

reference

 300-600

0.75

0.59-0.95

0.82

0.64-1.06

 600-1000

0.46

0.36-0.59

0.56

0.43-0.72

 >1000

0.29

0.21-0.4

0.36

0.25-0.51

Residence (n=6019)

0.14

0.33

 City

1.00

reference

1.00

reference

 Rural

1.10

0.97-1.23

0.88

0.77-1.01

 Pastoral

1.35

0.96-1.9

0.99

0.69-1.45

 Suburbs

0.90

0.68-1.21

0.96

0.70-1.30

faculty (n=6038)

<0.01

<0.01

 Clinical Medicine

1.00

reference

1.00

reference

 Public Administration and Information Management

0.68

0.57-0.81

0.72

0.60-0.87

Medicine

0.68

0.58-0.8

0.70

0.58-0.84

 Traditional Chinese Medicine and Mongolian Medicine

1.25

1.05-1.49

1.30

1.08-1.59

 Other

0.91

0.78-1.08

0.61

0.51-0.74

Physical condition (n=6024)

<0.01

0.28

 Good

1.00

reference

1.00

reference

 Medium

0.67

0.62-0.78

0.90

0.79-1.03

 Bad

0.55

0.41-0.74

0.99

0.69-1.45

Relationships (n=6020)

0.22

0.26

 Good

1.00

reference

1.00

reference

 Medium

0.85

0.76-0.396

1.08

0.93-1.24

 Bad

0.84

0.58-1.231

1.40

0.91-2.16

Appetite (n=6020)

<0.01

<0.01

 Good

1.00

reference

1.00

reference

 Medium

0.54

0.48-0.61

0.64

0.56-0.74

 Bad

0.29

0.23-0.37

0.44

0.33-0.57

Sleeping (n=6019)

<0.01

<0.01

 Good

1.00

reference

1.00

reference

 Medium

0.67

0.59-0.75

0.89

0.78-1.02

 Bad

0.44

0.36-0.53

0.70

0.56-0.86

Learning (n=6008)

<0.01

<0.01

 Good

1.00

reference

1.00

reference

 Medium

0.55

0.47-0.64

0.67

0.56-0.80

 Bad

0.24

0.19-0.3

0.40

0.31-0.52

Get along with classmates (n=6002)

<0.01

0.18

 Good

1.00

reference

1.00

reference

 Medium

0.73

0.65-0.82

0.88

0.76-1.01

 Bad

0.66

0.38-1.16

0.91

0.50-1.68