Supplementary materials (to Bessudnov A., McKee, M. and Stuckler, D. “Inequalities in male mortality by occupational class, perceived status, and education in Russia, 19942006" 1. Description of the RLMS and comparison of the RLMS estimates of mortality rates versus official statistics The Russian Longitudinal Monitoring Survey (RLMS) was undertaken in 38 centres across the Russian Federation. St Petersburg and Moscow were selected automatically, and the remaining primary sampling units (PSUs), were sampled by stratification , selecting from each stratum using a probability proportional to size (PPS). Within the selected PSUs, urban and rural secondary sampling units (SSUs), census enumeration districts and villages respectively, were selected. From each SSU, 10 households were selected from housing lists developed by the investigators. The first dwelling was chosen at random, and the remainder at regular intervals. Thus, the sampling procedure was designed to achieve a study population that was broadly representative of the national population, but also ensuring that the two principal cities, with their particular characteristics, were included. The survey has a panel element, as the same households are visited in successive waves, with replacement of losses to follow-up. Investigators attempted to followup people who moved to a new address if they remained within the same PSU. Our estimates of mortality rates are lower than those previously reported for the RLMS [10]. This is because our sample includes people who changed households during the follow-up. As these mobile populations tend to be younger than the sample average, excluding them would artefactually increase estimated mortality rates. Thus, between 1994 and 2006, we identified 1,557 deaths out of 147,115 person-years (21,275 subjects, mean follow-up 6.9 years). The estimated mortality rates in the RLMS are about 15% lower in men and 34% in women than the average official rate for 1994-2006 reported by the Russian Statistical Office, almost certainly reflecting an element of selection common to all surveys in Russia. In the RLMS deaths of individuals were reported by other members of the household during the interviews in successive waves (‘the Brass method’ of indirect estimation). This observation likely explains the lower reported mortality ratios observed among women, as many older women in Russia live on their own after their husbands have died. 2. Class gap in mortality in Russia and Western Europe Kunst et al. provided estimates of manual to non-manual mortality rate ratios for eleven Western European countries based on census and survey data collected in the 1980s [40]. Rate ratios were presented for men only in three age groups: 30-44, 45-59 and 60-64 and were adjusted for the exclusion of economically inactive people. The adjusted manual/non-manual mortality rate ratios for men aged 45-59 varied from 1.24 in Denmark to 1.65 in France, with the rate ratios in most countries being under 1.5. We estimated the manual to non-manual mortality rate ratio in Russia for men aged 45-59, using the same methodology as Kunst et al. The rate ratio was 2.29 (95% CI: 1.51-3.48, adjusted for the exclusion of economically inactive people). This suggests that the manual to non-manual mortality gap in Russia is considerably larger than in Western European countries. When calculating the rate ratio, Kunst et al. used directly standardized mortality rates and we had to use crude mortality rates, as direct standardization could generate misleading results given the small numbers in our sample. However, this is unlikely to seriously bias the results. Table A1. Descriptive statistics for class (men aged 21 to 70, the analytic sample) European Socio-Economic Examples of main No of men (%) Classification (ESeC) occupations included 1a/2a. Managers Managers of small enterprises 185 (2.8%) 1b. Higher professionals Engineers, architects, medical 424 (6.4% doctors 2b. Lower professionals Army officers, police 509 (7.7%) inspectors, technicians 3.Intermediate (higher routine Sales representatives, 138 (2.1%) Managers in wholesale and 325 (4.9%) non-manual) 4/5. Self-employed retail trade 6. Lower supervisors and Building caretakers, safety and technicians (manual quality inspectors, stock clerks 411 (6.2%) supervisors) 7. Lower sales and service Police officers, shop (lower routine non-manual) salespersons, stock clerks 8. Lower technical (skilled Building electricians, manual) mechanics and fitters, 214 (3.2%) 1423 (21.6%) plumbers and pipe fitters 9. Routine (non-skilled Drivers, building caretakers, manual) freight handlers Not in the labour force Long-term ill, unemployed Total 2198 (33.4%) 759 (11.5%) 6586 (100%) Table A2. Descriptive statistics for other variables (men aged 21 to 70, the analytic sample) Variable Age (at the last observation) Marital status (at the last observation) % or mean 43.8 (st.dev. 14.5) Never married 14.6% Married or cohabiting 79.6% Divorced, widowed, married, but separated 5.8% Ethnicity Russian 83.0% Non-Russian 14.6% No answer 2.4% Education (at the last observation) Secondary incomplete or lower 15.3% Secondary completed 28.4% Lower vocational (PTU) 23.1% Secondary specialized (technikum or uchilische) 15.0% University degree 18.2% Logged household income divided by the number of people in the 4.4 (st.dev. 1.3) household Perceived respect scale (1 to 9, 1 is the highest) 4.1 (st.dev. 1.8) Perceived wealth scale (1 to 9, 1 is the highest) 6.3 (st.dev. 1.5) Perceived power scale (1 to 9, 1 is the highest) 6.7 (st.dev. 1.7)