Sr. No. Knowledge among school students Baseline (2010) End line (2011) Z value Frequency (n=470) Percent-age Frequency (n=451) Percent-age 1 Knowledge about immunization 110 23.4 173 38.4 5.11* 2 Knowledge about all the diseases prevented by immunization 15 3.2 17 3.8 0.53 3 Knowledge about at least two diseases prevented by immunization 101 21.5 123 27.3 2.25* 4 Knowledge about the availability of treatment for TB 194 41.3 244 54.1 4.11* 5 Knowledge about the complaints a case of TB will have 31 6.6 33 7.3 0.66 6 Knowledge about the duration of treatment for TB 11 2.3 13 2.9 0.81 7 Knowledge about the vector for the spread of Malaria 210 44.7 202 44.8 0.10 8 Knowledge about the preventive measures for spread of Malaria 27 5.7 31 6.9 0.70 9 Knowledge about ORS 122 25.9 273 60.5 11.20* 10 Knowledge about home-based treatment for diarrhoea 37 7.8 42 9.3 0.85 11 Ever heard about HIV or AIDS 172 36.5 317 70.3 10.76* 12 Knowledge about all the modes of spread of HIV infection 16 3.4 30 6.6 2.34* 13 Knowledge about few modes of spread of HIV infection 99 21.06 149 33.03 4.32* *: Significant Z for difference between two proportions and p<0.05 When the knowledge among students was compared before and after imparting health education sessions using Z test for difference between two proportions as shown in table 1, it revealed significant difference of proportion in knowledge about immunization, knowledge about at least two diseases prevented by immunization, availability of treatment for TB, knowledge about ORS, heard of HIV AIDS, knowledge about modes of spread of HIV AIDS

Table 1: Knowledge among students before and after imparting Health Education Session in the schools.