Publications


2010

Odhiambo, JW, Patel MS.  2010.  On multistage group screening designs. AbstractOn multistage group screening designs

In this article we discuss multistage group screening in which group-factors contain differing number of factors. We describe a procedure for grouping the factors in the absence of concrete prior information, so that the relative testing cost is minimal. It Is shown that under quite general conditions, these designs will require fewer runs than the equivalent designs in which the group-factors contain same number of factors.

2002

Khogali, KA, Odhiambo JW, Owino JO.  2002.  On smoothing of some climotological variables.

2000

W, PROFODHIAMBOJOHN.  2000.  Odhiambo, J. W. and Mwambi, H. G. The Role of Mathematical Modelling and Computing in Biomedical Research. 2000. In proceedings of a Career Improvement Workshop in Mathematics and Computer Science. Chiromo Campus, University of Nairobi, 27 February - 4 March. : SITE Abstract

This paper describes the methodology and presents preliminary results of an economic appraisal of a community based health care project in Kenya. Community health workers, trained for 12 weeks and deployed in two locations in Kenya's Western Province, act as first contact providers of basic health care and promoters of selected health, sanitation and nutrition practices. A Cost Benefit Analysis has been undertaken using the Willingness to Pay approach to compare the costs of the project and its benefits. The benefits are in the form of more easily accessible basic health care and are measured as consumer surplus accruing to the community. Gain in consumer surplus is consequent on the fall of average user costs and rise in utilisation of the project established points of first contact with primary health care. The argument for the economic viability of the project is validated by the large Net Present Value and Benefit Cost Ratio obtained for the whole of the project area and for the two locations separately. Although the evaluation technique used faces the problem of valuation of community time, aggregation of health care services at all points of first contact and the partial nature of cost benefit analysis evaluations, the results are strongly in favour of decentralisation of primary health care on similar lines in the rest of the country.

1999

1998

1997

W, PROFODHIAMBOJOHN.  1997.  Hassanali, J.; Odhiambo, J.W. Estimation of calendar age from eruption times of permanent teeth in Kenyan Africans and Asians pp. 175-177(3). Proceedings of the Fifth ScientificConference of the East, Central and Southern Africa Network of the International Biometric Society Mombasa, Kenya. : SITE Abstract

This paper describes the methodology and presents preliminary results of an economic appraisal of a community based health care project in Kenya. Community health workers, trained for 12 weeks and deployed in two locations in Kenya's Western Province, act as first contact providers of basic health care and promoters of selected health, sanitation and nutrition practices. A Cost Benefit Analysis has been undertaken using the Willingness to Pay approach to compare the costs of the project and its benefits. The benefits are in the form of more easily accessible basic health care and are measured as consumer surplus accruing to the community. Gain in consumer surplus is consequent on the fall of average user costs and rise in utilisation of the project established points of first contact with primary health care. The argument for the economic viability of the project is validated by the large Net Present Value and Benefit Cost Ratio obtained for the whole of the project area and for the two locations separately. Although the evaluation technique used faces the problem of valuation of community time, aggregation of health care services at all points of first contact and the partial nature of cost benefit analysis evaluations, the results are strongly in favour of decentralisation of primary health care on similar lines in the rest of the country.

W, PROFODHIAMBOJOHN.  1997.  H.G. Mwambi, J.W. Odhiambo and L. Duchateau (1997) "A multiple matrix model for R. appendiculatus in Zimbabwe. Proceedings of the Fifth ScientificConference of the East, Central and Southern Africa Network of the International Biometric Society Mombasa, Kenya. : SITE Abstract

This paper describes the methodology and presents preliminary results of an economic appraisal of a community based health care project in Kenya. Community health workers, trained for 12 weeks and deployed in two locations in Kenya's Western Province, act as first contact providers of basic health care and promoters of selected health, sanitation and nutrition practices. A Cost Benefit Analysis has been undertaken using the Willingness to Pay approach to compare the costs of the project and its benefits. The benefits are in the form of more easily accessible basic health care and are measured as consumer surplus accruing to the community. Gain in consumer surplus is consequent on the fall of average user costs and rise in utilisation of the project established points of first contact with primary health care. The argument for the economic viability of the project is validated by the large Net Present Value and Benefit Cost Ratio obtained for the whole of the project area and for the two locations separately. Although the evaluation technique used faces the problem of valuation of community time, aggregation of health care services at all points of first contact and the partial nature of cost benefit analysis evaluations, the results are strongly in favour of decentralisation of primary health care on similar lines in the rest of the country.

1996

1988

Odhiambo, JW, Koske J.  1988.  On improved estimation under additional information. AbstractOn improved estimation under additional information

An improvement of the ordinary least squares estimator of the regression vector in a univariate linear model is obtained. This is done by combining observed data with prior information and other additional information. Important features include admissibility in the unrestricted and restricted cases.

1987

Odhiambo, JW.  1987.  On the performance of three-stage group screening experiments On the performance of three-stage group screening experiments. AbstractOn the performance of three-stage group screening experiments On the performance of three-stage group screening experiments

This paper examines the performance of three-stage group screening in terms of the mean number of tests needed; and the proportion of active factors correctly detected by the screening plan, A linear cost function is also proposed, To evaluate performance, random grouping and a constant signa1-to -noise ratio for all active factors, are assumed.

Manene, MM, Odhiambo JW.  1987.  Probability and Statistics I.

1986

Odhiambo, JW.  1986.  The performance of multistage group screening designs. AbstractThe performance of multistage group screening designs

This article deals with multistage group screening in which group-factors contain the same number of factors. A usual assumption of this procedure is that the directions of possible effects are known. In practice, however, this assumption i s often unreasonable. This paper examines, in the case of no errors in observations, the performance of multistage group screening when this assumption is false . This enails consideration of cancellation effects within group-factors

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