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Table 4 Reported rates of risk behaviours at each date and age- and social class-adjusted ORs for 2003 compared with 1990, by gender.

From: Changes in the socio-demographic patterning of late adolescent health risk behaviours during the 1990s: analysis of two West of Scotland cohort studies

 

MALES

FEMALES

Age- and social class-adjusted odds ratio for 2003 compared with 1990

(p-value of GENDER by DATE interaction-age and social class adjusted)

 

1990

2003

 

1990

2003

 

MALES

FEMALES

 

Risk behaviour

%

(95% CI)

%

(95% CI)

p-value

%

(95% CI)

%

(95% CI)

p-value

OR

(95% CI)

p-value

OR

(95% CI)

p-value

 

Current smoker

33.2

(28.9-37.8)

35.1

(30.9-39.5)

0.549

34.0

(29.9-38.4)

33.0

(28.9-37.5)

0.747

0.89

(0.62-1.25)

0.492

0.88

(0.62-1.24)

0.464

(0.447)

Heavier smoking *

22.3

(18.6-26.6)

19.4

(16.1-23.2)

0.276

22.6

(19.0-26.5)

11.3

(8.7-14.5)

< 0.001

0.79

(0.52-1.18)

0.249

0.43

(0.27-0.67)

< 0.001

(0.005)

Excessive drinking †

31.8

(27.5-36.3)

38.3

(34.0-42.8)

0.041

10.4

(8.0-13.5)

26.5

(22.6-30.7)

< 0.001

1.26

(0.89-1.77)

0.197

3.81

(2.47-5.87)

< 0.001

(< 0.001)

Binge drinking ‡

49.6

(44.9-54.4)

51.8

(47.3-56.3)

0.518

21.1

(17.6-25.0)

40.3

(35.9-44.8)

< 0.001

1.08

(0.78-1.50)

0.644

3.06

(2.14-4.38)

< 0.001

(< 0.001)

Use of any drugs

43.9

(39.3-48.7)

66.3

(62.0-70.4)

< 0.001

22.6

(19.0-26.5)

50.9

(46.3-55.4)

< 0.001

2.15

(1.53-3.01)

< 0.001

3.40

(2.40-4.80)

< 0.001

(0.084)

Used any drug in the past year

35.3

(30.9-40.0)

49.7

(45.2-54.1)

< 0.001

14.4

(11.6-17.9)

29.8

(25.8-34.1)

< 0.001

1.73

(1.24-2.41)

0.001

2.75

(1.85-4.08)

< 0.001

(0.123)

Used cannabis only in the past year ('cannabis-only') ^

19.8

(16.2-23.8)

29.0

(25.1-33.2)

0.001

9.6

(7.2-12.6)

19.6

(16.2-23.4)

< 0.001

1.92

(1.31-2.81)

0.001

2.43

(1.53-3.85)

< 0.001

(0.190)

Used any other drug in the past year ('other drugs') ~

15.4

(12.3-19.2)

20.6

(17.3-24.5)

0.044

4.7

(3.1-7.0)

10.0

(7.6-13.1)

0.002

1.12

(0.73-1.72)

0.616

2.53

(1.35-4.73)

0.004

(0.165)

Early sexual initiation #

24.8

(20.9-29.1)

30.3

(26.4-34.6)

0.063

7.5

(5.4-10.2)

26.5

(22.7-30.7)

< 0.001

1.38 ¶

(1.02-1.86)

0.038 ¶

4.54 ¶

(3.03-6.80)

< 0.001 ¶

(< 0.001) ¶

Three or more sexual partners ever

41.2

(36.5-45.9)

54.6

(50.1-59.1)

< 0.001

8.5

(6.3-11.4)

45.7

(41.2-50.2)

< 0.001

1.19

(0.85-1.67)

0.319

6.31

(4.12-9.67)

< 0.001

(< 0.001)

Two or more sexual

partners last year

29.9

(25.8-34.5)

44.1

(39.7-48.6)

< 0.001

6.8

(4.9-9.5)

26.4

(22.5-30.6)

< 0.001

1.34

(0.94-1.90)

0.101

5.24

(3.25-8.44)

< 0.001

(< 0.001)

Ever (made) pregnant

3.1

(1.8-5.2)

5.3

(3.6-7.7)

0.110

8.6

(6.4-11.5)

12.2

(9.5-15.5)

0.071

1.37

(0.58-3.20)

0.472

0.87

(0.50-1.51)

0.623

(0.590)

  1. * Defined as smoking 70+ cigarettes a week
  2. † Defined as ≥22 units in the past week for men and ≥15 units in the past week for women
  3. ‡ Defined as ≥9 units on any day in the past week for men and ≥7 units on any day in the past week for women
  4. ^Defined as cannabis and no other drugs
  5. ~ Defined as any other drug(s) (with or without cannabis)
  6. # Defiined as sexual intercourse at age < 16 years
  7. ¶ Data on early sexual initiation collected retrospectively so age adjustment not applicable; adjusted for social class only.
  8. OR = odds ratio for increase in behaviour rate between 1990 and 2003, CI = confidence interval
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BMC Public Health

ISSN: 1471-2458

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