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Table 6 Reported rates of risk behaviours at each date and age- and gender-adjusted ORs for 2003 compared with 1990, by deprivation category.

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

  LOWER DEPRIVATION HIGHER DEPRIVATION Age- and gender adjusted odds ratio for 2003 compared with 1990 (p-value of DEPRIVATION by DATE interaction-age and gender adjusted)
  1990 2003   1990 2003   LOWER DEPRIVATION HIGHER DEPRIVATION  
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 33.0
(29.1 - 37.1)
29.2
(25.4 - 33.4)
0.201 34.2
(29.4 - 39.3)
36.4
(32.1 - 41.0)
0.514 0.67
(0.48-0.95)
0.022 0.95
(0.67-1.35)
0.773 (0.185)
Heavier smoking * 19.9
(16.7 - 23.6)
12.9
(10.2 - 16.1)
0.003 26.3
(22.0 - 31.1)
17.3
(14.1 - 21.1)
0.002 0.49
(0.32-0.76)
0.002 0.54
(0.36-0.83)
0.005 (0.963)
Excessive drinking 21.8
(18.5 - 25.6)
33.7
(29.7 - 38.0)
< 0.001 17.8
(14.2 - 22.1)
30.6
(26.4 - 35.1)
< 0.001 1.69
(1.18-2.40)
0.004 2.68
(1.78-4.04)
< 0.001 (0.463)
Binge drinking 36.0
(32.0 - 40.2)
49.0
(44.6 - 53.4)
< 0.001 31.4
(26.7 - 36.4)
43.0
(38.4 - 47.7)
0.001 1.64
(1.19-2.26)
0.003 2.14
(1.49-3.08)
< 0.001 (0.926)
Used of any drugs 31.8
(28.0 - 35.9)
56.9
(52.5 - 61.1)
< 0.001 34.5
(29.7 - 39.6)
58.2
(53.6 - 62.7)
< 0.001 2.28
(1.65-3.15)
< 0.001 2.40
(1.69-3.41)
< 0.001 (0.854)
Used any drug in the past year 24.0
(20.5 - 27.8)
38.1
(33.9 - 42.4)
< 0.001 24.3
(20.1 - 29.0)
38.5
(34.1 - 43.1)
< 0.001 1.89
(1.34-2.67)
< 0.001 2.03
(1.40-2.96)
< 0.001 (0.841)
Used cannabis only in the past year ('cannabis-only') ^ 13.8
(11.1 - 17.1)
27.2
(23.5 - 31.3)
< 0.001 15.0
(11.6 - 19.1)
19.1
(15.7 - 23.0)
0.125 2.63
(1.78-3.90)
< 0.001 1.53
(0.98-2.40)
0.063 (0.040)
Used any other drug in the past year ('other drugs') ~ 10.0
(7.7 - 12.9)
10.9
(8.4 - 13.9)
0.636 9.3
(6.7 - 12.8)
19.3
(15.9 - 23.3)
< 0.001 0.80
(0.48-1.33)
0.380 2.10
(1.27-3.47)
0.004 (0.009)
Early sexual initiation # 14.4
(11.7 - 17.7)
24.2
(20.7 - 28.2)
< 0.001 16.9
(13.4 - 21.2)
33.9
(29.7 - 38.5)
< 0.001 1.87
(1.36-2.57)
< 0.001 2.63
(1.86-3.70)
< 0.001 (0.184)
Three or more sexual
partners ever
22.6
(19.2-26.3)
47.1
(42.8-51.6)
< 0.001 25.5
(21.3-30.2)
53.1
(48.4-57.8)
< 0.001 1.83
(1.30-2.57)
< 0.001 2.57
(1.76-3.71)
< 0.001 (0.542)
Two or more sexual
partners last year
17.4
(14.5-20.9)
34.1
(30.0-38.4)
< 0.001 17.8
(14.2-22.0)
34.5
(30.2-39.0)
< 0.001 1.94
(1.35-2.80)
< 0.001 2.63
(1.75-3.96)
< 0.001 (0.856)
Ever pregnant 4.4
(3.0 - 6.6)
5.2
(3.6 - 7.6)
0.542 8.8
(6.3 - 12.3)
13.9
(10.9 - 17.4)
0.028 0.53
(0.25-1.15)
0.109 1.04
(0.60-1.81)
0.894 (0.518)
  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. # Defined as sexual intercourse at age < 16 years
  7. Data on early sexual initiation collected retrospectively so age adjustment not applicable; adjusted for gender only.
  8. OR = odds ratio for increase in behaviour rate between 1990 and 2003, CI = confidence interval