Table 3 Logistic regression for substance use outcomes and age at menarche among 14-15 year old Canadian girls

Age at menarche

   Early

2.49 (0.64-9.74)

1.77 (0.49-6.38)

5.97 (0.36-99.16)

   Average

1.65 (0.57-4.78)

1.13 (0.44-2.88)

5.40 (0.37-79.01)

   Late

1

1

1

Household income

   Lowest & Lower middle

0.58 (0.09-3.83)

0.15 (0.02-1.17)

0.10 (0.01-4.80)

   Middle

1.13 (0.41-3.10)

0.82 (0.32-2.10)

0.57 (0.20-1.62)

   Upper middle

1.38 (0.59-3.22)

0.86 (0.39-1.86)

0.73 (0.33-1.62)

   Highest

1

1

1

Residence

   Rural

0.89 (0.40-1.97)

1.58 (0.75-3.33)

1.63 (0.71-3.73)

   Urban

1

1

1

PMK education

   Less than secondary

1.57 (0.49-5.00)

0.98 (0.32-3.02)

1.30 (0.36-4.70)

   Secondary school graduation

1.15 (0.49-2.68)

1.25 (0.58-2.69)

1.14 (0.53-2.45)

   Beyond high school

0.98 (0.34-2.81)

1.23 (0.55-2.78)

1.61 (0.66-3.88)

   College or university degree

1

1

1

Province of residence‡

   Eastern

2.51 (0.93-6.77)

0.84 (0.38-1.84)

2.20 (0.86-5.59)

   Central

1.73 (0.76-3.94)

0.78 (0.40-1.50)

2.09 (0.98-4.50)

   Western

1

1

1

PMK immigration status

   No

2.15 (0.61-7.53)

1.64 (0.51-5.22)

1.98 (0.67-5.87)

   Yes

1

1

1

Living with both parents

   No

1.40 (0.58-3.41)

2.23 (0.83-5.99)

2.26 (0.80-6.40)

   Yes

1

1

1

Relationship with mother

   Very close

1

1

1

   Somewhat close

1.27 (0.56-2.88)

0.93 (0.48-1.78)

1.10 (0.52-2.33)

   Not very close

0.89 (0.21-3.73)

1.38 (0.26-7.25)

0.69 (0.13-3.75)

Relationship with father

   Very close

1

1

1

   Somewhat close

1.25 (0.51-3.06)

1.81 (0.89-3.70)

1.92 (0.83-4.46)

   Not very close

2.67 (0.99-7.20)

3.29 (1.32-8.21)

3.82 (1.31-11.15)

Work for pay

   No

1

1

1

   Yes

1.41 (0.60-3.28)

1.74 (0.87-3.51)

1.92 (0.83-4.47)

School performance

   Very well/Well

1

1

1

   Average/Poor/Very poor

3.25 (1.58-6.70)

2.08 (1.09-3.97)

3.02 (1.46-6.22)

Self score

0.95 (0.83-1.09)

0.95 (0.85-1.07)

0.98 (0.86-1.11)