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Table 2 Vitamin A coverage in children (12–23 months) by selected characteristics in 1999 and 2002

From: Vitamin A supplementation in Tanzania: the impact of a change in programmatic delivery strategy on coverage

Characteristics 1999 Survey    2002 Survey   
  n N % 95%CI p valuea n N % 95%CI p valuea
VAS coverage           
   All districts 51 385 13.2 9.8–17.7   296 388 76.3 71.5–80.5  
Sex           
   Male 27 188 14.4 9.8–20.5 0.53 161 205 78.5 71.8–93.9 0.28
   Female 24 197 12.2 7.9–18.4   135 183 73.8 66.8–79.7  
DPT vaccination           
   Vaccinated 37 280 13.2 9.5–18.1 0.97 229 296 77.4 71.6–82.3 0.34
   Not vaccinated 14 105 13.3 7.6–22.3   66 91 72.5 63.2–80.2  
Maternal education           
   No 10 129 7.8 4.2–13.8 0.02 70 100 70.0 60.2–78.3 0.08
   Primary 37 243 15.2 11.2–20.3   218 280 77.9 72.4–82.5  
   Secondary 4 13 30.8 12.0–59.1   8 8 100.0 -  
Knowledge of ≥2 danger signs           
   No 35 282 12.4 9.1–16.8 0.09 195 244 79.9 74.4–84.5 0.04
   Yes 14 71 19.4 11.5–31.8   91 131 69.5 60.0–77.6  
Socio-economic status           
   Poorest 5 60 8.3 3.7–17.8 0.64b 56 73 76.7 67.5–84.0 0.68b
   Very Poor 10 56 17.9 9.6–30.9   59 77 76.6 65.5–85.0  
   Poor 9 80 11.3 5.7–21.1   49 70 70.0 56.7–80.6  
   Less Poor 10 73 13.7 6.7–26.0   65 82 79.3 68.7–86.9  
   Least Poor 12 81 14.8 8.1–25.5   58 74 78.4 67.6–86.3  
District           
   Morogoro 12 79 15.2 8.2–26.5 0.85 73 95 76.8 66.9–84.5 0.94
   Rufiji 13 99 13.1 6.6–24.3   81 108 75.0 65.3–82.7  
   Ulanga 16 111 14.4 8.4–23.6   89 114 78.1 69.3–84.9  
   Kilombero 10 96 10.4 5.5–18.9   53 71 74.6 61.6–84.4  
  1. a Pearson chi-squared statistics corrected for survey design
  2. b P-level for F-test for linear trend in proportions, using logistic regression adjusting for clustering