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Table 1 Characteristics of study population

From: Anthropometric indices of Gambian children after one or three annual rounds of mass drug administration with azithromycin for trachoma control

  Annual MDA Single MDA
Baseline census:
Number of clusters (EA) randomized 24 24
EA population size (all ages), mean (SD)* 705 (239.3) 696 (184.5)
EA population size (1–4 years), mean (SD)* 98 (43.4) 97 (28.5)
Household head years of education, mean (SD)* 0.61 (0.79) 0.51 (0.66)
Household water source >15 minutes away, mean (SD)* 12.0 (14.7) 12.6 (20.2)
Household latrine access, mean (SD)* 90.0 (12.4) 92.0 (9.14)
Year three follow-up:
Number of clusters 24 24
Total number of children aged 0 to 5 years randomly sampled and examined for trachoma outcomes 2442 2374
Number of children aged 1–4 years examined for trachoma outcomes 1727 1696
Number of children aged 1–4 years examined for trachoma outcomes and with anthropological measures 1431 1455
District Foni Bintang 295 (20.6) 357 (24.5)
  Foni Kansala 288 (20.1) 327 (22.5)
  Lower Baddibu 443 (31.0) 365 (25.1)
  Central Baddibu 405 (28.3) 406 (27.9)
Age (years) 1 386 (27.0) 354 (24.3)
  2 369 (25.8) 408 (28.0)
  3 362 (25.3) 347 (23.9)
  4 314 (21.9) 346 (23.8)
Sex Male 741 (51.8) 765 (52.6)
  Female 690 (48.2) 690 (47.4)
Active trachoma No 1388 (97.0) 1408 (96.8)
  Yes 43 (3.0) 47 (3.2)
  1. *data summary measures are mean (SD) of cluster proportions or means by arm.