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Table 4 Country-specific self-reported arthritis prevalence (weighted), across age strata, educational attainment and marital status, stratified by sex

From: Prevalence of arthritis according to age, sex and socioeconomic status in six low and middle income countries: analysis of data from the World Health Organization study on global AGEing and adult health (SAGE) Wave 1

  Women with self-reported arthritis (n = 5003)
China
n = 1851
Ghana
n = 350
India
n = 946
Mexico
n = 206
Russian Federation
n = 1049
South Africa
n = 601
Age (years)
 18–29 3.7% (0.9%–14.5%) 4.4% (1.3%–13.8%) 2.9% (1.9%–4.2%) 0.4% (0.1%–2.8%) 4.0% (0.6%–22.1%) 8.9% (1.8%–34.2%)
 30–39 6.0% (3.8%–9.5%) 3.0% (0.9%–9.2%) 8.5% (6.7%–10.7%) 1.8% (0.5%–6.0%) 14.7% (7.0%–28.3%) 0.2% (0.0%–1.6%)
 40–49 15.1% (11.2%–20.0%) 3.6% (1.6%–8.1%) 12.2% (9.6%–15.3%) 7.9% (2.2%–24.5%) 21.4% (10.5%–38.6%) 11.3% (5.6%–21.4%)
 50–59 22.1% (20.0%–24.4%) 11.5% (9.1%–14.5%) 19.8% (16.7%–23.2%) 6.6% (2.3%–17.5%) 21.1% (15.6%–27.9%) 29.2% (24.6%–34.2%)
 60–69 29.7% (27.1%–32.6%) 15.4% (12.1%–19.5%) 21.4% (16.7%–26.9%) 13.0% (8.8%–18.7%) 36.4% (29.6%–43.8%) 31.5% (25.7%–38.0%)
 70+ 29.2% (26.7%–31.9%) 22.8% (18.6%–27.6%) 23.5% (18.8%–29.0%) 22.9% (11.2%–41.1%) 45.7% (39.1%–52.3%) 26.5% (20.7%–33.2%)
Formal educationa
 Never schooled 24.1% (19.9%–28.8%) 9.5% (7.0%–12.7%) 12.6% (10.9%–14.6%) 11.0% (4.7%–23.5%) 51.8% (31.0%–72.1%) 17.5% (12.8%–23.5%)
  ≤ Primary school 18.1% (13.7%–23.6%) 5.2% (2.9%–9.3%) 12.7% (10.5%–15.3%) 7.4% (3.7%–14.4%) 42.4% (33.0%–52.4%) 31.1% (21.0%–43.5%)
 Secondary school 13.0% (10.1%–16.5%) 4.6% (2.4%–8.9%) 5.5% (4.0%–7.5%) 3.1% (1.3%–7.4%) 25.0% (20.0%–30.8%) 8.4% (4.8%–14.3%)
 College 4.7% (1.6%–13.1%) 1.6% (0.7%–4.0%) 6.7% (2.7%–15.6%) 1.6% (0.7%–3.6%) 15.1% (10.0%–22.2%) 1.5% (0.6%–3.6%)
Marital statusb
 Never married 0.9% (0.3%–3.0%) 7.8% (2.3%–23.2%) 1.1% (0.4%–3.0%) 1.3% (0.7%–2.4%) 7.8% (4.4%–13.4%) 12.1% (5.5%–24.7%)
 Married 14.7% (12.6%–17.2%) 3.5% (2.1%–6.0%) 10.3% (9.1%–11.7%) 4.3% (2.5%–7.3%) 17.4% (12.4%–24.0%) 9.2% (5.5%–14.9%)
 Divorced/widowed 25.2% (19.9%–31.5%) 11.7% (8.9%–15.1%) 19.1% (15.9%–22.7%) 19.0% (8.1%–38.4%) 36.4% (29.1%–44.4%) 19.3% (12.8%–28.1%)
  Men with self-reported arthritis (n = 2664)
China
n = 1145
Ghana
n = 230
India
n = 578
Mexico
n = 77
Russian Federation
n = 363
South Africa
n = 271
Age strata (years)
 18–29 1.3% (0.2%–8.8%) 2.1% (1.0%–4.7%) 0.7% (0.1%–3.4%)
 30–39 5.5% (2.4%–12.1%) 0.2% (0.0%–1.4%) 6.1% (3.8%–9.8%) 14.6% (5.4%–34.1%) 1.3% (0.3%–5.8%)
 40–49 12.0% (7.9%–18.0%) 3.7% (1.5%–8.7%) 7.9% (5.1%–12.1%) 2.9% (0.6%–13.2%) 4.7% (1.3%–15.9%) 0.9% (0.3%–3.0%)
 50–59 13.7% (11.8%–15.8%) 7.4% (5.4%–10.1%) 13.7% (11.3%–16.5%) 0.9% (0.3%–2.6%) 21.6% (9.5%–42.2%) 12.6% (9.3%–16.8%)
 60–69 20.0% (17.7%–22.5%) 11.6% (8.6%–15.4%) 16.9% (13.8%–20.6%) 8.0% (4.7%–13.3%) 21.3% (15.2%–29.0%) 28.2% (22.1%–35.2%)
 70+ 22.9% (20.7%–25.2%) 16.7% (12.6%–21.7%) 17.8% (14.5%–21.7%) 9.7% (6.3%–14.5%) 37.85 (30.3%–46.0%) 20.9% (13.5%–30.9%)
Formal educationa
 Never schooled 22.3% (13.2%–35.2%) 6.3% (4.5%–8.7%) 9.0% (6.7%–12.1%) 7.7% (3.2%–17.3%) 4.4% (0.6%–26.8%) 10.4% (6.0%–17.6%)
  ≤ Primary school 14.8% (10.3%–20.7%) 2.9% (1.6%–4.9%) 9.0% (6.6%–12.1%) 3.7% (1.8%–7.7%) 39.6% (21.3%–61.4%) 7.1% (4.4%–11.2%)
 Secondary school 9.2% (7.3%–11.5%) 4.6% (2.3%–8.9%) 8.5% (6.4%–11.3%) 0.3% (0.1%–0.7%) 11.9% (7.2%–19.0%) 2.2% (1.1%–4.6%)
 College 7.4% (3.8%-13.95) 2.3% (1.1%–4.9%) 4.1% (2.0%–8.0%) 0.2% (0.0%–1.1%) 9.4% (3.1%–25.1%) 2.3% (0.9%–6.1%)
Marital statusb
 Never married 3.0% (1.5%–5.9%) 0.3% (0.1%–1.0%) 3.9% (1.5%–9.5%) 0.1% (0.0%–0.5%) 0.9% (0.3%–3.1%) 2.0% (0.8%–4.7%)
 Married 11.9% (9.4%–14.8%) 4.5% (3.1%–6.5%) 8.8% (7.2%–10.7%) 2.2% (1.1%–4.4%) 11.3% (7.5%–16.7%) 5.6% (4.1%–7.6%)
 Divorced/widowed 11.8% (8.7%–15.7%) 8.5% (5.4%–13.2%) 6.5% (3.8%–10.7%) 6.6% (3.3%–12.6%) 33.5% (13.3%–62.3%) 13.2% (5.6%–27.9%)
  1. Data presented as proportions with 95% confidence intervals (95% CI)
  2. Abbreviations: LMIC low and middle income countries, WHO World Health Organization
  3. aCategories of formal education are; ≤primary school (less than primary school, or primary school completed); secondary school (secondary school completed, or high school or its equivalent completed); college (college or pre-university completed, or post-graduate degree completed)
  4. bCategories of marital status are; married (currently married or cohabiting); divorced/widowed (separated or divorced, or widowed)