Skip to main content

Table 1 Descriptive information for the main outcome and explanatory variables, Twenty-07 Study, Waves 1 - 5 (1987/8 - 2007/8)

From: Do social inequalities in health widen or converge with age? Longitudinal evidence from three cohorts in the West of Scotland

Characteristics Baseline Wave2 Wave3 Wave4 Wave5 Modeling Data- Waves 2-5a Modeling data- with dead respondents- Waves 2-5a
  1987/8 1990/2 1995/7 2000/4 2007/8   
1970s Cohort        
% of whole sample in cohort at each wave 33.6 35.0 30.8 31.7 36.2 33.3 30.2
Number in cohort at each wave 1515 1343 916 843 942 3982 4033
Average Age 15.7 18.6 24.8 30.2 36.7 26.7 26.7
% of cohort female 51.3 52.4 54.1 54.4 54.9 53.7 53.4
% of cohort in poor health at baselineb - - - - - - -
% of cohort in poor health status at each wave - 33.6 30.5 32.5 22.9 30.1 31.0
% of cohort in manual class at baseline 39.5 37.1 34.5 33.7 34.7 35.6 35.9
% of cohort in manual class at each wave 39.5 37.5 32.1 20.4 17.1 32.5c 32.8c
% of cohort dead (of baseline sample) 0 0.1 0.5 1.1 1.7 N/a 1.3d
1950s Cohort        
% of whole sample in cohort at each wave 32.0 32.0 34.5 36.8 38.4 35.0 32.6
Number in cohort at each wave 1444 1225 1026 980 999 4180 4354
Average Age 36.2 40.5 45.2 50.2 57.1 47.8 48.0
% of cohort female 54.6 55.2 55.6 54.5 54.3 55.1 54.6
% of cohort in poor health at baseline 23.8 23.8 21.9 21.6 21.8 22.3 22.9
% of cohort in poor health status at each wave 23.8 28.8 31.2 33.1 29.5 30.5 33.3
% of cohort in manual class at baseline 34.2 33.5 31.1 29.8 30.4 31.6 32.3
% of cohort in manual class at each wave 34.2 30.5 27.7 26.9 26.3 28.9c 29.6c
% of cohort dead (of baseline sample) 0 0.6 2.1 3.9 6.0 N/a 4.0d
1930s Cohort        
% of whole sample in cohort at each wave 34.4 33.0 34.7 31.5 25.5 31.7 37.2
Number in cohort at each wave 1551 1266 1030 838 663 3789 4972
Average Age 56.2 59.6 64.4 69.1 76.2 65.9 67.1
% of cohort female 54.7 54.2 56.3 56.1 57.9 55.9 53.2
% of cohort in poor health at baseline 41.9 41.9 39.6 36.0 33.8 38.6 42.7
% of cohort in poor health status at each wave 41.9 39.5 44.3 40.1 46.2 42.2 55.9
% of cohort in manual class at baseline 45.8 43.4 39.9 37.0 34.2 39.5 43.5
% of cohort in manual class at each wave 45.8 45.8 43.3 42.4 41.2 42.1c 45.8c
% of cohort dead (of baseline sample) 0 4.8 11.7 23.1 36.6 N/a 23.8d
All cohorts        
Total (N) 4510 3834 2972 2661 2604 11951 13359
Average Age 36.2 39.2 45.6 49.8 54.6 46.5 48.7
% female 53.5 53.9 55.4 55.0 55.4 54.9 53.7
% poor health at baselinee 33.2 33.0 30.8 28.3 26.6 30.1 33.4
% poor health status at each wave 33.2e 34.0 35.5 35.1 31.4 34.1 41.0
% in manual class at baseline 40.0 38.0 35.2 33.3 32.9 35.4 37.5
% in manual class at each wave 40.0 38.0 34.5 29.7 26.8 34.3c 36.6c
% dead (of baseline sample) 0 1.9 4.9 9.6 15.1 N/a 10.5d
  1. aData in these columns are person-waves.
  2. bThe self-assessed health question used in this analysis was not included in the baseline interview for the 1970s cohort
  3. cHousehold class from the previous (or most recent) wave is used for the person-wave data as this is what was used in the statistical models.
  4. dThis value represent the percentage of person-waves where the respondent is actually dead.
  5. eThe self-assessed health question used in this analysis was not included in the baseline interview for the 1970s cohort, and so these figures give combined percentages for the 1950s and 1930s cohorts only.