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Table 1 Baseline characteristics of intervention and control children aged 12-23 months, with significance tested using a cluster comparison (based on numbers of children in order to assess baseline differences in intervention and control groups).

From: Evidence-based discussion increases childhood vaccination uptake: a randomised cluster controlled trial of knowledge translation in Pakistan

  Intervention Control Cluster analysis (t-test) Naïve 2 × 2 Mantel Haenszel odds ratio
  % Based on % Based on   
Households:       95%CI
   Roof type (good) 36% 202/533 28% 125/371 P = 0.451 0.90-1.61
   Breadwinner income (good) 50% 263/529 55% 203/367 P = 0.287 0.60-1.05
   Low room occupancy 40% 217/532 46% 174/371 p = 0.213 0.59-1.03
   Household not vulnerable 36% 195/528 40% 158/367 P = 0.635 0.58-1.03
   Head of HH has formal education 35% 198/531 33% 135/371 P = 0.693 0.78-1.39
   Vaccination facility within 5 km 55% 308/487 30% 152/364 p = 0.127 1.81-3.22
   Village visited by vaccination team 43% 227/491 31% 86/323 P = 0.398 1.74-3.29
Mothers:       
   Willing to travel to vaccinate 98% 420/431 89% 278/309 P = 0.009 3.64-98.3
   Mother has formal education 8% 48/538 6% 28/373 P = 0.511 0.73-2.11
   Have heard about vaccinations 89% 490/537 86% 328/373 P = 0.511 0.90-2.27
   Know a vaccine preventable illness 84% 458/534 73% 274/365 P = 0.084 1.41-2.87
   Neighbours think vaccination worthwhile 86% 471/537 79% 301/368 P = 0.310 0.96-2.35
   Think vaccination worthwhile 94% 512/537 90% 335/366 P = 0.228 0.99-3.51
   Ever visited by LHW 32% 198/538 12% 50/373 P = 0.068 2.68-5.56
   LHW told about vaccinations 9% 59/533 5% 21/372 P = 0.445 1.26-3.94
Children (12-23 months):       
   Measles vaccination 47% 279/537 49% 198/367 P = 0.832 0.70-1.22
   DPT-full schedule 51% 304/536 45% 184/366 P = 0.505 0.98-1.71
   Polio vaccine in last 12 m 99% 530/537 100% 369/369 P = 0.502 -