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Introduction: Life expectancy is one of the summary measures of population health, whose values and trend of changes over time show the main outcome of health system performance. Estimation of life expectancy is performed with direct or model-based methods. In this study direct estimation of life expectancy for Iran’s population in year 2003 is performed. Materials and Methods: In an ecologic study, for calculation of abridged period life table for 23 out of 28 provinces of Iran in year 2003, numbers of registered deaths for age and sex specific groups in these 23 provinces by death registration system of Ministry of Health (MOH) were used. Undernumeration of over-four year's deaths was estimated and corrected with Brass Growth-Balance method. For mortality rates of under-one and 1-4 years, similar rates from Demographic and Health Survey (DHS) 2000 with live births denominators were substituted. For total number of population of 23 provinces, information from MOH was used. Distribution of population by age and sex was taken similar to that from DHS 2003 results, and also taken as result of graduation of whole country population from 1375 census. Population of these 23 provinces was equal to 73% of total population of country in year 2003. Life expectancy was estimated by age and sex with the obtained population and death numbers. It was assumed that distributions of population and death in 23 provinces were similar to those for the whole 28 provinces of Iran in year 2003 and hence, the estimated life expectancy for 23 provinces is equal to that for all 28 provinces in 2003. Sensitivity of the results to assumptions was analyzed. Confidence intervals were calculated with Monte Carlo method. Results: Life expectancy at birth was estimated as 71.56 years for total population (95% CI: 71.52 – 71.62), 70.09 years for males (70.02 – 70.16), and 73.17 (73.10 – 73.24) for females of Iran in year 2003. Sensitivity of results to assumptions was less than 0.5%. Conclusion: Values of life expectancy estimates for year 2003 with direct method are higher than those based on statistical modeling approaches performed by Statistical Center of Iran and by different United Nations agencies, due to difference in estimation methods for age and sex specific mortality rates.

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Introduction: Breast cancer causes psychological problems and decreases psychological health in people, therapeutic interventions are needed to solve these problems. This research was conducted to determine the effectiveness of group meaning therapy intervention on the quality of life, emotional regulation, and life expectancy of women with breast cancer.
Methods: The research method was semi-experimental with a pre-test-post-test design with a control group. The statistical population included all women with breast cancer referring to the health centers of Kerman city in 2023. Among them, 30 people were selected by the available sampling method and were replaced randomly and by lottery in two experimental and control groups (15 individuals in the experimental group and 15 in the control group). The people in the experimental group received group-meaning therapy intervention (10 sessions) and two sessions weekly for 90 minutes. The questionnaires used in this research included quality of life, emotion regulation, and life expectancy questionnaires administered in two phases: pre-test and post-test.
Results: The results showed that before the intervention, there was no significant difference between the average scores of the quality of life, emotion regulation, and life expectancy of the intervention and control groups, but there was a statistically significant difference between the average scores of the intervention and control groups after the intervention. The mean and standard deviation of the quality of life in the post-test was 6.91 ± 29.75, emotion regulation was 10.25 ± 98.28, and life expectancy was 6.49 ± 39.51 (P < 0.001).
Conclusions: According to the results of this research, group therapy increased the quality of life, emotion regulation, and life expectancy in women with cancer. Since the favorable mental state of the patient affects their recovery, the use of this method is recommended as an effective strategy to reduce the psychological problems of patients.

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Introduction: The main consequence of heart failure is a decline in patients' functional abilities, leading to limitations in occupational and social-family tasks, as well as impairments in cognitive and emotional health, ultimately resulting in a reduced quality of life. This research was conducted to assess the effectiveness of emotion regulation training in improving the quality of life and life expectancy of cardiovascular patients referred to health centers in Khorram Abad City.
Methods: The current research used a semi-experimental design of pre-test-post-test type and three-month follow-up with experimental and control groups. The statistical population of the research included all patients with cardiovascular diseases referred to the health centers of Khorram Abad City in 2023. Among the statistical population, 40 people were selected by direct sampling and randomly divided into two experimental (20 people) and control (20 people) groups. The experimental group was trained in emotion regulation during eight 90-minute sessions for 8 weeks. Both groups completed the World Health Organization Quality of Life Questionnaire (WHO-QOL-BREF) and Schneider et al.'s (1991) Life Expectancy Questionnaire in the pre-test, post-test, and follow-up. The multivariate covariance analysis method and Bonferroni post hoc test were used to analyze the results.
Results: The results showed that emotional regulation training is efficacious in improving the quality of life and life expectancy of cardiovascular patients (P < 0.01), and this effect remained stable in the three-month follow-up phase (P < 0.01).
Conclusions: Emotion regulation training is recommended to enhance cardiovascular patients' quality of life and life expectancy.