Background
Method
Study population
The PART study
The Stockholm Public Health Cohort
Measurements
The Alcohol Use Disorders Identification Test (AUDIT)
Normal weekly alcohol consumption (NWAC)
Socio-demographic variables
Missing data
Statistical analysis
Results
Participants
Variables* | Level | Subgroups | PART N = 5 227 | SPHC N = 19 327 | ||
---|---|---|---|---|---|---|
n | % | n | % | |||
Educational level | Men | Low | 260 | 12.3 | 1 356 | 16.4 |
Intermediate | 886 | 42.0 | 3 378 | 40.7 | ||
High | 960 | 45.5 | 3 217 | 38.8 | ||
Missing
|
2
|
0.1
|
339
|
4.1
| ||
Women | Low | 455 | 14.6 | 1 664 | 15.1 | |
Intermediate | 1 139 | 36.5 | 4 440 | 40.2 | ||
High | 1 520 | 48.7 | 4 455 | 40.4 | ||
Missing
|
5
|
0.2
|
478
|
4.3
| ||
Occupational class | Men | Unskilled workers | 200 | 9.5 | 1 487 | 17.9 |
Skilled workers | 169 | 8.0 | 829 | 10.0 | ||
Lower non-manual employees | 193 | 9.2 | 763 | 9.2 | ||
Intermediate non-manual employees | 443 | 21.0 | 1 907 | 23.0 | ||
Higher non-manual employees | 682 | 32.4 | 2 068 | 24.9 | ||
Self-employed | 185 | 8.8 | 852 | 10.3 | ||
Missing
|
236
|
11.2
|
384
|
4.6
| ||
Women | Unskilled workers | 321 | 10.3 | 1 781 | 16.1 | |
Skilled workers | 127 | 4.1 | 1 007 | 9.1 | ||
Lower non-manual employees | 586 | 18.8 | 2 127 | 19.3 | ||
Intermediate non-manual employees | 792 | 25.4 | 3 045 | 27.6 | ||
Higher non-manual employees | 686 | 22.0 | 2 055 | 18.6 | ||
Self-employed | 127 | 4.1 | 465 | 4.2 | ||
Missing
|
480
|
15.4
|
557
|
5.0
| ||
Abstainers last 12 months | Men | 76 | 3.6 | 515 | 6.2 | |
Missing
|
4
|
0.2
|
62
|
0.7
| ||
Women | 170 | 5.5 | 1 168 | 10.6 | ||
Missing
|
4
|
0.1
|
130
|
1.2
| ||
Risk consumers | Men | 421 | 20.0 | 2 279 | 27.5 | |
Missing
|
23
|
1.1
|
270
|
3.3
| ||
Women | 501 | 16.1 | 2 703 | 24.5 | ||
Missing
|
59
|
1.9
|
318
|
2.9
|
Alcohol habits* | Level | Subgroups | T0
| T1
| T2
| |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
n | % | Mean | SD | n | % | Mean | SD | n | % | Mean | SD | |||
PART
| N = 5 227 | |||||||||||||
AUDIT score
| Valid cases | 5 145 | 98.4 | 4.4 | 3.6 | 5 173 | 99.0 | 4.3 | 3.5 | 5 087 | 97.3 | 4.2 | 3.5 | |
Men | Age 20-29 at T0
| 335 | 15.9 | 7.3 | 4.6 | 334 | 15.8 | 6.8 | 4.1 | 335 | 15.9 | 5.5 | 4.0 | |
Age 30-39 at T0
| 431 | 20.4 | 5.7 | 4.3 | 428 | 20.3 | 5.4 | 3.8 | 426 | 20.2 | 5.5 | 4.1 | ||
Age 40-49 at T0
| 445 | 21.1 | 5.2 | 4.0 | 447 | 21.2 | 5.3 | 3.9 | 434 | 20.6 | 5.2 | 4.2 | ||
Age 50-59 at T0
| 662 | 31.4 | 5.0 | 4.1 | 664 | 31.5 | 4.8 | 3.8 | 651 | 30.9 | 4.9 | 4.0 | ||
Age 60-64 at T0
| 212 | 10.1 | 4.2 | 3.6 | 214 | 10.2 | 4.2 | 3.6 | 206 | 9.8 | 4.0 | 3.4 | ||
Missing
|
Age 20-64 at T
0
|
23
|
1.1
|
NA**
|
NA
|
21
|
1.0
|
NA
|
NA
|
56
|
2.7
|
NA
|
NA
| |
Women | Age 20-29 at T0
| 571 | 18.3 | 4.6 | 3.2 | 581 | 18.6 | 4.3 | 3.2 | 571 | 18.3 | 3.5 | 2.7 | |
Age 30-39 at T0
| 698 | 22.4 | 3.5 | 2.9 | 701 | 22.5 | 3.6 | 2.9 | 696 | 22.3 | 3.7 | 3.1 | ||
Age 40-49 at T0
| 697 | 22.3 | 3.6 | 3.0 | 703 | 22.5 | 3.7 | 3.0 | 689 | 22.1 | 3.7 | 3.0 | ||
Age 50-59 at T0
| 803 | 25.7 | 3.4 | 2.8 | 811 | 26.0 | 3.4 | 2.8 | 799 | 25.6 | 3.4 | 2.8 | ||
Age 60-64 at T0
| 291 | 9.3 | 2.8 | 2.0 | 290 | 9.3 | 2.8 | 2.1 | 280 | 9.0 | 3.0 | 2.8 | ||
Missing
|
Age 20-64 at T
0
|
59
|
1.9
|
NA
|
NA
|
33
|
1.1
|
NA
|
NA
|
84
|
2.7
|
NA
|
NA
| |
SPHC
| N = 19 327 | |||||||||||||
Normal week consumption
| Valid cases | 18 739 | 97.0 | 99.5 | 99.3 |
NA
|
NA
|
NA
|
NA
| 18 601 | 96.2 | 99.8 | 103.2 | |
Men | Age 18-29 at T0
| 925 | 11.2 | 145.8 | 138.6 | 922 | 11.1 | 121.3 | 119.7 | |||||
Age 30-39 at T0
| 1 415 | 17.1 | 125.6 | 107.6 | 1 404 | 16.9 | 120.9 | 110.2 | ||||||
Age 40-49 at T0
| 1 503 | 18.1 | 134.8 | 124.0 | 1 492 | 18.0 | 141.8 | 134.1 | ||||||
Age 50-59 at T0
| 1 948 | 23.5 | 142.2 | 124.8 | 1 942 | 23.4 | 149.7 | 132.2 | ||||||
Age 60-64 at T0
| 930 | 11.2 | 128.6 | 116.9 | 920 | 11.1 | 139.7 | 126.4 | ||||||
Age 65-74 at T0
| 982 | 11.8 | 115.5 | 105.4 | 966 | 11.7 | 118.4 | 116.2 | ||||||
Age 75-84 at T0
| 317 | 3.8 | 85.6 | 87.5 | 306 | 3.7 | 82.9 | 83.4 | ||||||
Missing
|
Age 18-84 at T
0
|
270
|
3.3
|
NA
|
NA
|
338
|
4.1
|
NA
|
NA
| |||||
Women | Age 18-29 at T0
| 1 491 | 13.5 | 83.9 | 87.5 | 1 476 | 13.4 | 62.5 | 64.4 | |||||
Age 30-39 at T0
| 2 252 | 20.4 | 71.0 | 67.1 | 2 226 | 20.2 | 69.8 | 66.1 | ||||||
Age 40-49 at T0
| 2 028 | 18.4 | 81.4 | 74.0 | 2 034 | 18.4 | 83.9 | 77.4 | ||||||
Age 50-59 at T0
| 2 451 | 22.2 | 82.1 | 69.1 | 2 436 | 22.1 | 88.7 | 80.6 | ||||||
Age 60-64 at T0
| 926 | 8.4 | 76.2 | 69.5 | 920 | 8.3 | 84.0 | 86.5 | ||||||
Age 65-74 at T0
| 1 105 | 10.0 | 62.7 | 65.0 | 1 090 | 9.9 | 65.3 | 75.3 | ||||||
Age 75-84 at T0
| 466 | 4.2 | 43.5 | 52.5 | 467 | 4.2 | 46.0 | 67.5 | ||||||
Missing
|
Age 18-84 at T
0
|
318
|
2.9
|
NA
|
NA
|
388
|
3.5
|
NA
|
NA
|
Stability in alcohol habits
Subgroups | N | ICC* | 95% CI | Mean audit AT T0
| Change (%) mean audit | |
---|---|---|---|---|---|---|
T0- T2
| ||||||
Total
| 4 277 | 0.69 | 0.68-0.70 | 4.38 | -3.28 | |
Sex
| ||||||
Men | 1 782 | 0.68 | 0.66-0.70 | 5.38 | -4.36 | |
Women | 2 495 | 0.66 | 0.65-0.68 | 3.66 | -2.15 | |
Age at T
0
| ||||||
Men | 20-29 years | 240 | 0.62 | 0.56-0.68 | 7.25 | -22.59 |
30-39 years | 389 | 0.62 | 0.57-0.67 | 5.58 | -3.00 | |
40-49 years | 404 | 0.66 | 0.62-0.70 | 5.08 | 1.90 | |
50-59 years | 598 | 0.72 | 0.68-0.75 | 4.95 | 1.18 | |
60-64 years | 151 | 0.81 | 0.76-0.85 | 4.37 | -5.15 | |
Women | 20-29 years | 429 | 0.59 | 0.54-0.64 | 4.65 | -23.25 |
30-39 years | 573 | 0.65 | 0.61-0.69 | 3.61 | 3.19 | |
40-49 years | 618 | 0.68 | 0.65-0.72 | 3.54 | 4.85 | |
50-59 years | 700 | 0.72 | 0.69-0.75 | 3.42 | 2.05 | |
60-64 years | 175 | 0.70 | 0.63-0.76 | 2.79 | 9.63 | |
Educational level at T
0
| ||||||
Men | Low | 215 | 0.61 | 0.54-0.68 | 5.45 | -5.97 |
Intermediate | 728 | 0.65 | 0.62-0.69 | 5.57 | -8.14 | |
High | 839 | 0.73 | 0.70-0.75 | 5.19 | -0.41 | |
Women | Low | 334 | 0.70 | 0.65-0.74 | 3.24 | 0.92 |
Intermediate | 882 | 0.64 | 0.60-0.67 | 3.79 | -2.54 | |
High | 1 279 | 0.67 | 0.65-0.70 | 3.68 | -2.57 | |
Occupational class at T
0
| ||||||
Men | Unskilled workers | 187 | 0.55 | 0.47-0.63 | 5.64 | -12.61 |
Skilled workers | 159 | 0.67 | 0.60-0.74 | 6.04 | -15.31 | |
Lower non-manual employees | 181 | 0.62 | 0.54-0.69 | 5.62 | -6.09 | |
Intermediate non-manual employees | 424 | 0.75 | 0.71-0.78 | 4.97 | -0.95 | |
Higher non-manual employees | 656 | 0.71 | 0.68-0.74 | 5.20 | -0.62 | |
Self-employed | 175 | 0.71 | 0.64-0.77 | 5.87 | -3.41 | |
Women | Unskilled workers | 298 | 0.69 | 0.64-0.73 | 3.65 | -4.96 |
Skilled workers | 117 | 0.78 | 0.72-0.84 | 3.49 | -0.49 | |
Lower non-manual employees | 564 | 0.62 | 0.58-0.66 | 3.66 | -1.94 | |
Intermediate non-manual employees | 746 | 0.66 | 0.62-0.69 | 3.69 | -2.54 | |
Higher non-manual employees | 649 | 0.68 | 0.64-0.71 | 3.64 | -1.61 | |
Self-employed | 121 | 0.60 | 0.51-0.69 | 3.75 | 1.76 |
Subgroups | n | ICC* | 95% CI | Mean | Chance (%) | |
---|---|---|---|---|---|---|
Nwac | Mean nwac | |||||
AT T0
| T0- T2
| |||||
Total
| 16 688 | 0.62 | 0.61-0.63 | 101.51 | 0.74 | |
Sex
| ||||||
Men | 7 128 | 0.60 | 0.58-0.61 | 133.32 | 1.31 | |
Women | 9 560 | 0.57 | 0.56-0.59 | 77.79 | 0.00 | |
Age at T
0
| ||||||
Men | 18-29 years | 728 | 0.47 | 0.41-0.52 | 149.48 | -19.60 |
30-39 years | 1 339 | 0.53 | 0.49-0.57 | 126.39 | -4.53 | |
40-49 years | 1 400 | 0.66 | 0.63-0.69 | 136.28 | 4.96 | |
50-59 years | 1 820 | 0.61 | 0.58-0.64 | 142.71 | 6.85 | |
60-64 years | 865 | 0.64 | 0.60-0.68 | 128.94 | 8.36 | |
65-74 years | 892 | 0.62 | 0.58-0.66 | 116.74 | 3.71 | |
75-84 years | 84 | 0.69 | 0.56-0.79 | 71.80 | 17.02 | |
Women | 18-29 years | 1 210 | 0.40 | 0.35-0.44 | 85.09 | -26.42 |
30-39 years | 2 111 | 0.56 | 0.53-0.59 | 71.48 | -0.94 | |
40-49 years | 1 931 | 0.62 | 0.59-0.65 | 82.17 | 3.64 | |
50-59 years | 2 328 | 0.59 | 0.56-0.61 | 83.16 | 7.54 | |
60-64 years | 868 | 0.67 | 0.64-0.71 | 78.23 | 7.82 | |
65-74 years | 984 | 0.62 | 0.58-0.65 | 65.56 | 3.81 | |
75-84 years | 128 | 0.68 | 0.57-0.76 | 40.33 | 9.05 | |
Educational level at T
0
| ||||||
Men | Low | 1 103 | 0.58 | 0.54-0.62 | 124.37 | 4.55 |
Intermediate | 3 042 | 0.59 | 0.57-0.61 | 137.09 | 2.06 | |
High | 2 983 | 0.62 | 0.59-0.64 | 132.77 | -0.59 | |
Women | Low | 1 337 | 0.51 | 0.47-0.55 | 70.74 | -3.67 |
Intermediate | 4 061 | 0.58 | 0.56-0.60 | 76.42 | 1.43 | |
High | 4 162 | 0.59 | 0.57-0.61 | 81.40 | -0.29 | |
Occupational class at T
0
| ||||||
Men | Unskilled workers | 1 303 | 0.59 | 0.56-0.63 | 121.12 | 3.07 |
Skilled workers | 720 | 0.54 | 0.49-0.59 | 122.79 | 4.43 | |
Lower non-manual employees | 685 | 0.60 | 0.55-0.65 | 133.56 | -4.08 | |
Intermediate non-manual employees | 1 737 | 0.59 | 0.56-0.62 | 136.61 | -2.54 | |
Higher non-manual employees | 1 903 | 0.64 | 0.61-0.67 | 136.04 | 1.22 | |
Self-employed | 780 | 0.58 | 0.53-0.62 | 149.20 | 8.87 | |
Women | Unskilled workers | 1 526 | 0.54 | 0.51-0.58 | 62.98 | -1.35 |
Skilled workers | 917 | 0.53 | 0.49-0.58 | 71.21 | -1.67 | |
Lower non-manual employees | 1 895 | 0.57 | 0.54-0.60 | 77.23 | 2.00 | |
Intermediate non-manual employees | 2 856 | 0.56 | 0.53-0.58 | 78.43 | -0.81 | |
Higher non-manual employees | 1 933 | 0.58 | 0.55-0.61 | 88.51 | -0.19 | |
Self-employed | 433 | 0.68 | 0.63-0.73 | 94.36 | 3.93 |
Predictors of stability and change in alcohol habits
Variable | Stable* | Decrease** | Increase*** | |||||||
---|---|---|---|---|---|---|---|---|---|---|
n | Row | n | Row | ORcrude
A
| ORadj
B
| n | Row | ORcrude
A
| ORadj
B
| |
% | % | (95% CI) | (95% CI) | % | (95% CI) | (95% CI) | ||||
Total n = 4 277
| 3 336 | 78.0 | 515 | 12.0 | - | - | 426 | 10.0 |
-
|
-
|
Sex
| ||||||||||
Men | 1 293 | 72.6 | 266 | 14.9 | 1.69 | 1.88 | 223 | 12.5 | 1.74 | 1.83 |
(1.40-2.03) | (1.54-2.29) | (1.42-2.13) | (1.49-2.26) | |||||||
Women | 2 043 | 81.9 | 249 | 10.0 | 1 | 1 | 203 | 8.1 | 1 | 1 |
Age at T
0
| ||||||||||
20-29 years | 420 | 62.8 | 193 | 28.8 | 5.04 | 5.63 | 56 | 8.4 | 1.35 | 1.48 |
(3.23-7.85) | (3.56-8.92) | (0.83-2.20) | (0.90-2.43) | |||||||
30-39 years | 739 | 76.8 | 104 | 10.8 | 1.54 | 1.66 | 119 | 12.4 | 1.63 | 1.75 |
(0.98-2.44) | (1.04-2.64) | (1.05-2.54) | (1.12-2.74) | |||||||
40-49 years | 824 | 80.6 | 87 | 8.5 | 1.16 | 1.24 | 111 | 10.9 | 1.37 | 1.46 |
(0.73-1.84) | (0.78-1.99) | (0.88-2.13) | (0.93-2.28) | |||||||
50-59 years | 1 079 | 83.1 | 106 | 8.2 | 1.08 | 1.09 | 113 | 8.7 | 1.06 | 1.07 |
(0.68-1.70) | (0.69-1.72) | (0.68-1.65) | (0.69-1.67) | |||||||
60-64 years | 274 | 84.0 | 25 | 7.7 | 1 | 1 | 27 | 8.3 | 1 | 1 |
Educational level at T
0
| ||||||||||
Low | 435 | 79.2 | 56 | 10.2 | 0.94 | 1.21 | 58 | 10.6 | 1.08 | 1.09 |
(0.69-1.28) | (0.85-1.72) | (0.79-1.47) | (0.77-1.55) | |||||||
Intermediate | 1 221 | 75.8 | 229 | 14.2 | 1.37 | 1.07 | 160 | 9.9 | 1.06 | 0.91 |
(1.13-1.67) | (0.85-1.35) | (0.85-1.32) | (0.71-1.16) | |||||||
High | 1 680 | 79.3 | 230 | 10.9 | 1 | 1 | 208 | 9.8 | 1 | 1 |
Occupational class at T
0
| ||||||||||
Unskilled workers | 356 | 73.4 | 72 | 14.8 | 1.49 | 1.06 | 57 | 11.8 | 1.31 | 1.34 |
(1.09-2.03) | (0.75-1.51) | (0.94-1.83) | (0.93-1.95) | |||||||
Skilled workers | 199 | 72.1 | 47 | 17.0 | 1.74 | 1.28 | 30 | 10.9 | 1.23 | 1.19 |
(1.21-2.50) | (0.85-1.91) | (0.80-1.88) | (0.76-1.87) | |||||||
Lower non-manual employees | 583 | 78.3 | 90 | 12.1 | 1.14 | 1.07 | 72 | 9.7 | 1.01 | 1.21 |
(0.86-1.51) | (0.77-1.48) | (0.74-1.37) | (0.86-1.70) | |||||||
Intermediate non-manual employees | 933 | 79.7 | 128 | 10.9 | 1.01 | 0.95 | 109 | 9.3 | 0.95 | 1.03 |
(0.78-1.30) | (0.73-1.24) | (0.73-1.25) | (0.78-1.36) | |||||||
Higher non-manual employees | 1 037 | 79.5 | 141 | 10.8 | 1 | 1 | 127 | 9.7 | 1 | 1 |
Self-employed | 228 | 77.0 | 37 | 12.5 | 1.19 | 1.20 | 31 | 10.5 | 1.11 | 1.07 |
(0.81-1.76) | (0.79-1.80) | (0.73-1.69) | (0.70-1.65) |
Variable | Stable* | Decrease** | Increase*** | |||||||
---|---|---|---|---|---|---|---|---|---|---|
n | Row | n | Row | ORcrude
A
| ORadj
B
| n | Row | ORcrude
A
| ORadj
B
| |
% | % | (95% CI) | (95% CI) | % | (95% CI) | (95% CI) | ||||
Total n = 16 688
| 10 451 | 62.6 | 3 052 | 18.3 | 3 185 | 19.1 | - | |||
Sex
| ||||||||||
Men | 3 813 | 53.5 | 1 603 | 22.5 | 1.93 | 2.02 | 1 712 | 24.0 | 2.02 | 2.00 |
(1.78-2.09) | (1.85-2.19) | (1.87-2.19) | (1.84-2.17) | |||||||
Women | 6 638 | 69.4 | 1 449 | 15.2 | 1 | 1 | 1 473 | 15.4 | 1 | 1 |
Age at T
0
| ||||||||||
18-29 years | 1 004 | 51.8 | 623 | 32.1 | 4.37 | 4.79 | 311 | 16.0 | 1.37 | 1.47 |
(2.77-6.91) | (3.02-7.60) | (0.93-2.02) | (0.99-2.18) | |||||||
30-39 years | 2 109 | 61.1 | 681 | 19.7 | 2.28 | 2.42 | 660 | 19.1 | 1.39 | 1.48 |
(1.44-3.59) | (1.53-3.83) | (0.95-2.02) | (1.01-2.16) | |||||||
40-49 years | 2 174 | 65.3 | 534 | 16.0 | 1.73 | 1.76 | 623 | 18.7 | 1.27 | 1.29 |
(1.10-2.73) | (1.11-2.80) | (0.87-1.85) | (0.88-1.90) | |||||||
50-59 years | 2 627 | 63.3 | 635 | 15.3 | 1.70 | 1.69 | 886 | 21.4 | 1.49 | 1.48 |
(1.08-2.68) | (1.07-2.67) | (1.03-2.17) | (1.02-2.17) | |||||||
60-64 years | 1 156 | 66.7 | 242 | 14.0 | 1.48 | 1.37 | 335 | 19.3 | 1.28 | 1.20 |
(0.92-2.35) | (0.86-2.20) | (0.87-1.89) | (0.81-1.77) | |||||||
65-74 years | 1 226 | 65.4 | 315 | 16.8 | 1.81 | 1.71 | 335 | 17.9 | 1.21 | 1.15 |
(1.14-2.88) | (1.08-2.73) | (0.82-1.78) | (0.78-1.70) | |||||||
75-84 years | 155 | 73.1 | 22 | 10.4 | 1 | 1 | 35 | 16.5 | 1 | 1 |
Educational level at T
0
| ||||||||||
Low | 1 464 | 60.0 | 484 | 19.8 | 1.17 | 1.31 | 492 | 20.2 | 1.22 | 1.26 |
(1.04-1.32) | (1.13-1.50) | (1.08-1.37) | (1.10-1.45) | |||||||
Intermediate | 4 402 | 62.0 | 1 272 | 17.9 | 1.02 | 1.06 | 1 429 | 20.1 | 1.18 | 1.18 |
(0.94-1.12) | (0.96-1.17) | (1.08-1.28) | (1.07-1.30) | |||||||
High | 4 585 | 64.2 | 1 296 | 18.1 | 1 | 1 | 1 264 | 17.7 | 1 | 1 |
Occupational class at T
0
| ||||||||||
Unskilled workers | 1 772 | 62.6 | 499 | 17.6 | 0.97 | 0.80 | 558 | 19.7 | 1.04 | 0.95 |
(0.85-1.10) | (0.69-0.93) | (0.92-1.18) | (0.82-1.09) | |||||||
Skilled workers | 1 008 | 61.6 | 305 | 18.6 | 1.04 | 0.95 | 324 | 19.8 | 1.06 | 0.99 |
(0.89-1.21) | (0.80-1.13) | (0.92-1.24) | (0.84-1.16) | |||||||
Lower non-manual | 1 671 | 64.8 | 444 | 17.2 | 0.91 | 0.97 | 465 | 18.0 | 0.92 | 1.00 |
employees | (0.80-1.04) | (0.84-1.13) | (0.81-1.05) | (0.86-1.15) | ||||||
Intermediate non-manual employees | 2 945 | 64.1 | 845 | 18.4 | 0.98 | 1.03 | 803 | 17.5 | 0.90 | 0.95 |
(0.88-1.10) | (0.92-1.16) | (0.81-1.01) | (0.85-1.07) | |||||||
Higher non-manual | 648 | 53.4 | 257 | 21.2 | 1 | 1 | 308 | 25.4 | 1 | 1 |
employees | ||||||||||
Self-employed | 2 407 | 62.7 | 702 | 18.3 | 1.36 | 1.27 | 727 | 19.0 | 1.57 | 1.34 |
(1.15-1.61) | (1.07-1.51) | (1.34-1.85) | (1.14-1.58) |
Discussion
-
There were no major differences in stability between men and women
-
The stability tended to be higher in older age groups
-
No conclusive pattern of stability was found with regard to educational level or occupational class, except for tendencies of high stability in alcohol habits and risky alcohol habits among self-employed women
-
To be a man, and the age 30-39 predicted changes, both increase and decrease, in alcohol habits