HANDLING OF OVERDISPERSION CASES IN MORBIDITY DATA IN SELUMA REGENCY

The problem of overdispersion as a violation of the assumption of equidispersion in Poisson regression is generally caused by  sources of unobserved heterogeneity, missing observations on predictor variables, outliers in the data, errors in the specification of the bridging function, and many observed  values that are zero.  The  purpose of  this study is  to find out the right  model and the variables  that affect data that occurs overdispersion and excess zero in the case of the number of days of disruption at work, school, or other daily activities due to health complaints. The methods used were Poisson Regression, Negative  Binomial Regression, Hurdle  Poisson  Regression,  Zero  Inflated Poisson Regression,  Zero  Inflated  Negative  Binomial Regression, and Hurdle Negative Binomial Regression. The data used were morbidity taken from data on the number of days  of  disruption at  work,  school  or  other daily  activities due  to  health  complaints  in  Seluma district,  Bengkulu Province. It was found that the best model is Zero Inflated Negative  Poisson  with  the  smallest  Akaike  Information Criterion (AIC) value of 1620.609  and the variables that have  a  significant  effect on the  log model and the logit model are marital status and work variables

Uji Fisik Sediaan Gel Ekstrak Tongkol Jagung (Zay Mays L)

Abstract Background : Corn cobs have the potential to protect the skin, so far the research has only been limited to testing the extracts and has not been formed in a cosmetic preparation. Gel is a cosmetic preparation that is ideal for sunscreens because it is less oily, not sticky, soft, elegant, can form a layer of film that adheres well and protects the skin, and evaporation of water content creates a soothing and pleasant effect. Method: The method is used to determine the physical appearance of the gel with organoleptic parameters, homogeneity, dispersion and absorbency. Result: The purpose of this study was to determine the results of the physical test of sunscreen gel preparations from corn cobs extract (Zea mays L). Conclusion: The physical test results from the sunscreen gel extract of corn cobs extract (Zay Mays L.) had the results of organoleptic test, homogeneity test, spreadability test and adherence to the standard