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Table 1 Characteristics of measles cases during the endemic (1998-2002) and epidemic (2010) periods in Zambia

From: Spatial clustering of measles cases during endemic (1998–2002) and epidemic (2010) periods in Lusaka, Zambia

Variable 1998-2002 2010
Median (25thpercentile, 75thpercentile) Median (25thpercentile, 75thpercentile)
Median age in months (IQR) 14 (9, 37) 12 (7, 29)
Male 613 (54%) 588 (52%)
Measles vaccination status   
  Not Vaccinated 563 (50%) 618 (55%)
  Vaccinated 209 (19%) 221 (20%)
  Unknown 357 (32%) 286 (25%)
HIV infection status   
  Not infected 931 (84%) 905 (80%)
  Infected 164 (15%) 41 (4%)
  Exposed NA 100 (9%)
  Unknown 11 (1%) 80 (7%)
  1. Note: NA denotes “Not Applicable” in that during the 1998-2002 measles endemic period the HIV infection status of children admitted to University Teaching Hospital, Lusaka, Zambia was not available.