expectancy (LE) of Czech males was extension on 2.3 years at age one between period 1995-2003, in females population it was 2.1 years. LE was growing at all age groups in this period. The differences costs of the public insured funds on one added yer of life was 2599 CZK at age one, 1379 CZK at age 15, 3783 CZK at age 45 and 12503 CZK at age 65. The sensitivity analysis was providing for some hypotheses about the influence medical care on LE. At the hypothesis that medical care influences LE 15%, marginal costs on one added year of life the males at age 0 was 18 780 CZK (1385 international dollars), for females population it was 15 786 CZK (1176 internatio-nal dollars). For the persons at age 65 years was costs on added year of life ninefold higher. The marginal costs on one year added life there are higher in the most countries west Europe in comparison with Czech Republic.

        Key words: medium life expectancy - funding of public health insurance