Intervention mothers reported fewer episodes of severe neonatal illness ( risk ratio 0.82 , 0.67 to 0.99 ) and lower prevalence of diarrhoea ( 0.71 , 0.60 to 0.83 ) and pneumonia ( 0.73 , 0.52 to 1.04 ) in the two weeks preceding the 6 month interview and of diarrhoea ( 0.63 , 0.49 to 0.80 ) and pneumonia ( 0.60 , 0.46 to 0.78 ) in the two weeks preceding the 12 month interview .