Table 4 Regression analysis for factors associated with MG infection in Guangzhou, China, 2017–2018 (n = 678)

 Male

Ref

 Female

0.93 (0.48–1.79)

0.827

 18–25

1.98 (0.632–6.23)

0.241

 26–45

1.08 (0.37–3.17)

0.887

  > 45

Ref

 Single

Ref

 Currently married

0.855 (0.47–1.57)

0.612

 Other

2.16 (0.69–6.79)

0.186

 Less than 6 months

Ref

 More than 6 months

1.52 (0.73–3.17)

0.258

 Middle school or less

Ref

 Senior school

1.81 (0.57–5.69)

0.313

 Secondary school or junior college

1.56 (0.54–4.49)

0.409

 Bachelor’s degree or higher

2.34 (0.87–6.32)

0.093

 Heterosexual

1.90 (0.45–8.06)

0.377

 MSM

Ref

 Always

Ref

 Not always

6.50 (1.11–8.66)

0.035

 0–1

Ref

 2 ~ 3

1.31 (0.71–2.42)

0.393

  > 3

1.74 (0.63–4.83)

0.284

 No

Ref

Ref

 Yes

2.52 (2.03–3.13)

0.001

2.52 (2.03–3.13)