The patient who improved with or without some disability were said to have favourable outcome at one month where as those still in vegetative state or died were said to have unfavourable outcome.
In our study we observed more number of younger patient(<45 years ; n = 284) as compared to elder population (>45 years ; n = 116), with more percentage of unfavourable outcomes seen in the age group (> 45 years) as compared to age group of <45 years (88% vs.
In past study on prognostic factors for severe head injury (20) showed negative oculocephalic reflex has unfavourable outcome in head injury patient and in original study of NIMHANS (14) prognostic significance of negative oculocephalic reflex was observed and thus was incorporated in prediction model which we used.
Finally in our study the prediction score of the outcome calculated, by using NIMHANS Model (14) and compared with actual outcome observed and predictive value for both favourable and unfavourable outcome were compared, predictive value for unfavourable outcome (specificity) was 83.
A feature regarded as unfavourable could mean a declining population of marsh fritillary butterfly or shrinking peat bog.
For example, a site may have nine favourable features but be listed as unfavourable because its 10th feature is unfavourable, so figures about the number of favourable sites do give a rather negative view of the situation," a spokesperson said.