Table 3 Odds ratio for reporting acne with mental distress, diet, lifestyle factors and socio-demographic variables among 1316 and 1647 late adolescent boys and girls in Oslo, Norway.

Crude OR

Adjusted OR

Males

Females

Males

Females

Mental distress

No

1.0

1.0

1.0

1.0

Yes

1.63 (1.08-2.44)

2.16 (1.61-2.90)

1.68 (1.10-2.57)

2.04 (1.50-2.77)

Diet

   Soft drinks with sugar

Often

1.0

1.0

1.0

1.0

Seldom

1.22 (0.84-1.77)

0.88 (0.53-1.46)

1.04 (0.95-2.08)

1.11 (0.64-1.92)

   Raw vegetables

Often

1.0

1.0

1.0

1.0

Seldom

1.26 (0.91-1.74)

1.41 (1.05-1.90)

1.30 (0.93-1.82)

1.38 (1.01-1.88)

   Fat fish

Seldom

1.0

1.0

1.0

1.0

Often

1.49 (0.81-2.67)

1.47 (0.81-2.67)

1.57 (0.86-2.86)

1.32 (0.70-2.47)

   Chocolate/sweets

Seldom

1.0

1.0

1.0

1.0

Often

1.40 (1.01-1.94)

1.29 (0.95-1.74)

1.26 (0.84-1.88)

1.26 (0.84-1.88)

   Potato chips

Seldom

1.0

1.0

1.0

1.0

Often

1.54 (1.03-2.29)

1.07 (0.67-1.70)

1.45 (0.88-2.40)

1.45 (0.88-2.40)

Lifestyle

   Cigarette smoking

Yes, daily

1.0

1.0

1.0

1.0

Yes, but has quit or sometimes

1.06 (0.65-1.74)

1.12 (0.73-1.73)

1.16 (0.70-1.92)

1.25 (0.80-1.95)

No, never

1.14 (0.73-1.78)

1.09 (0.73-1.61)

1.19 (0.73-1.93)

1.18 (0.77-1.82)

   Alcohol intake

Often

1.0

1.0

1.0

1.0

Seldom

1.31 (0.95-1.79)

1.22 (0.90-1.66)

1.33 (0.93-1.89)

1.01 (0.71-1.43)

Socio-demographic factors

   Ethnicity

Western

1.0

1.0

1.0

1.0

Non-Western

1.02 (0.69-1.51)

1.77 (1.27-2.45)

0.79 (0.48-1.31)

1.53 (0.95-2.16)

   Income

>1.0 million NOK

1.0

1.0

1.0

1.0

0.5-1.0 million NOK

1.09 (0.68-1.73)

1.55 (1.02-2.34)

1.0 (0.57-1.74)

1.33 (0.87-2.04)

< 0.5 million NOK

1.10 (0.76-1.61)

2.14 (1.36-3.35)

1.06 (0.72-1.57)

1.48 (0.88-2.48)