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

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).

	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	-

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