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Table 2 Demographic characteristics of measles outbreak in Mongolia, March 2015–December 2016 (N = 53,737)

From: Epidemiological characteristics and trends of a Nationwide measles outbreak in Mongolia, 2015–2016

  Total Attack rate a Hospitalized Death Death rate a Vaccinated c Nosocomial infection
N (%)   n (%) c n (%)   n (%) d n (%) d
Gender
 Male 26,853 (50.0) 182 8843 (32.9) 80 (57.1) 0.54 1773 (6.6) 572 (2.1)
 Female 26,884 (50.0) 177 8893 (33.1) 60 (42.9) 0.40 1699 (6.3) 530 (2.0)
Age
 0–8 months 8384 (15.6) 1278 b 4881 (58.2) e 105 (75.0) f 15.7 b 0 (0) 625 (7.5) g
 9–11 months 1769 (3.3) 966 (54.6) e 20 (14.3) f 313 (17.7) 151 (8.5) g
 1–4 years 3440 (6.4) 113 1385 (40.3) 9 (6.4) 0.29 897 (26.1) 110 (3.2)
 5–9 years 2265 (4.2) 76 665 (29.4) 0 (0.0) 0 489 (21.6) 11 (0.49)
 10–14 years 3323 (6.2) 153 531 (16.0) 0 (0.0) 0 546 (16.4) 7 (0.21)
 15–19 years 11,383 (21.2) 482 2402 (21.1) 1 (0.7) 0.042 583 (5.1) 28 (0.25)
 20–24 years 9763 (18.2) 379 2374 (24.3) 0 (0.0) 0 284 (2.9) 65 (0.67)
  ≥ 25 years 13,410 (25.0) 84 4532 (33.8) 5 (3.6) 0.031 360 (2.7) 105 (0.78)
All age 53,737 (100) 180 17,736 (33.0) 140 (100) 0.47 3472 (6.5) 1102 (2.1)
  1. aPer 10,000 population of corresponding gender or age group as of 31st December, 2015
  2. bRate in under-one children
  3. cVaccination of one or two doses
  4. dPercentage to total number of corresponding gender or age group
  5. e, f, gThe number of hospitalized cases, death cases, and nosocomial infection in under-one age were significantly higher than all the other age groups (P < 0.001). OR and 95% CI were 3.6 (3.5–3.8), 28.8 (17.0–48.8) and 10.8 (9.5–12.4), respectively