Table 3 Logistic regression analysis of associations with each diagnosis adjusting for gender, age and all variables listed

 Rural

reference

reference

reference

 Urban

1.1 [0.9–1.4]

0.466

0.3 [0.2–0.4]

<0.0001

6.1 [2.5–15.3]

<0.0001

 None

reference

reference

reference

 Primary

0.5 [0.4–0.6]

<0.0001

1.0 [0.8–1.3]

0.908

0.5 [0.1–2.1]

0.367

 Secondary

0.6 [0.4–0.8]

0.000

0.6 [0.5–0.8]

0.003

1.8 [0.6–5.5]

0.284

 College or University

0.7 [0.5–1.0]

0.042

0.4 [0.4–0.8]

0.006

2.9 [0.9–9.4]

0.067

 Employed (non-farming)

reference

reference

 Housewife

2.8 [2.1–3.7]

<0.0001

3.0 [2.2–4.2]

<0.0001

 Student

0.3 [0.2–0.4]

<0.0001

0.4 [0.2–0.6]

<0.0001

 Farmer

1.2 [0.9–1.7]

0.159

2.7 [2.0–3.8]

<0.0001

 Unemployed

0.05 [0.0–0.1]

<0.0001

0.05 [0.02–0.1]

<0.0001

 Retired

0.02 [0.001–0.1]

<0.0001

0.2 [0.1–0.3]

<0.0001

  ≤ 500

reference

reference

reference

  > 500

0.8 [0.7–1.0]

0.035

1.0 [0.8–1.2]

0.806

2.1 [.0.7–5.7]

0.164