Table 4 Unadjusted numbers, proportions and relative risks adjusted for current age for variables associated with having missing data for mother's highest education level, by survey mode

Sex

   Male

(1.00)

(1.00)

(1.00)

   Female

(0.89, 0.78–1.03)

(0.86, 0.70–1.06)

(0.84, 0.66–1.06)

Country of birth

   Australia

(1.00)

(1.00)

(1.00)

   UK/Ireland

(1.43, 1.20–1.70)**

(1.33, 1.02–1.73)

(1.36, 1.02–1.82)

   Other

(0.83, 0.64–1.07)

(0.93, 0.67–1.27)

(1.00, 0.69–1.44)

Marital status

   Married/de facto

(1.00)

(1.00)

(1.00)

   Separated/divorced/widowed

(1.14, 0.97–1.33)

(1.47, 1.19–1.82)**

(1.30, 1.02–1.65)

   Never married

(0.88, 0.65–1.20)

(1.29, 0.82–2.03)

(1.71, 1.04–2.83)

Area of residence

   Metropolitan

(1.00)

(1.00)

(1.00)

   Country

(1.12, 0.96–1.30)

(1.13, 0.89–1.44)

(1.22, 0.94–1.59)

Highest education level

   Bachelor degree or higher

(1.00)

(1.00)

(1.00)

   Certificate/Diploma

(2.37, 1.57–3.56)**

(5.00, 2.29–10.89)**

(4.20, 1.68–10.48)*

   Trade/Apprenticeship

(3.11, 2.06–4.70)**

(7.87, 3.62–17.13)**

(6.98, 2.79–17.45)**

   Left school after age 15

(3.44, 2.35–5.02)**

(8.55, 4.01–18.24)**

(8.15, 3.32–19.98)**

   Left school at age 15 or younger

(4.32, 2.93–6.38)**

(12.54, 5.78–27.20)**

(11.25, 4.53–27.94)**

   Still at school

(-)

(-)

(-)

Gross annual household income

   More than $60,000

(1.00)

(1.00)

(1.00)

   $40,001 to $60,000

(1.27, 0.97–1.67)

(2.05, 1.26–3.34)*

(2.20, 1.26–3.84)*

   $20,001 to $40,000

(1.53, 1.20–1.95)*

(2.40, 1.51–3.80)**

(2.02, 1.17–3.49)

   Up to $20,000

(1.86, 1.45–2.38)**

(3.64, 2.36–5.61)**

(3.27, 1.97–5.42)**

   Not stated

(2.33, 1.80–3.01)**

(3.81, 2.40–6.05)**

(3.93, 2.31–6.68)**

Employment status

   Full time employed

(1.00)

(1.00)

(1.00)

   Part time/casual employed

(1.25, 0.98–1.59)

(0.90, 0.59–1.37)

(0.92, 0.56–1.53)

   Unemployed/unable to work

(1.91, 1.43–2.55)**

(2.83, 1.57–5.08)*

(3.20, 1.53–6.70)*

   Home duties

(1.35, 1.03–1.77)

(1.60, 1.09–2.37)

(1.50, 0.94–2.41)

   Retired

(1.62, 1.26–2.08)**

(1.82, 1.19–2.77)*

(1.69, 1.02–2.81)

   Student

(0.72, 0.31–1.71)

(1.43, 0.59–3.43)

(1.97, 0.77–5.05)

   Not stated

(-)

(2.47, 1.48–4.13)*

(2.77, 1.37–5.58)*

Occupation

   Manager/Administrator/Professional

(1.00)

(1.00)

(1.00)

   Associate professional

(1.26, 0.90–1.77)

(2.98, 1.72–5.18)**

(2.59, 1.41–4.77)*

   Tradesperson/Advanced clerical or service

(1.67, 1.30–2.15)**

(3.08, 1.94–4.89)**

(2.75, 1.64–4.58)**

   Intermediate clerical/service/sales/production/transport

(1.64, 1.29–2.09)**

(3.51, 2.22–5.53)**

(3.36, 2.02–5.57)**

   Elementary clerical, sales, service/labourer

(2.13, 1.68–2.69)**

(4.46, 2.82–7.05)**

(3.90, 2.32–6.55)**

   Not stated/Home duties/Student/Never worked

(1.44, 1.06–1.95)

(4.93, 3.03–8.03)**

(4.56, 2.66–7.82)**