en Nursing Orginal research <strong><em>Background:</em></strong> Marital satisfaction is a crucial component of emotional stability of couples and plays a vital role in the function of family and society<span dir="RTL">.</span> Therefore, investigating the causes and factors affecting this category is of particular importance<span dir="RTL">.</span><br> <strong><em>Objectives:</em></strong> The present study aims to compare marital life satisfaction in the elderly and non-elderly people and related factors in 2012<span dir="RTL">.</span><br> <strong><em>Methods:</em></strong> A descriptive cross-sectional study was performed on 257 men and women covered by healthcare centers of Kashan University of Medical Sciences in 2012<span dir="RTL">.</span> The instruments used included the ENRICH marital satisfaction inventory and the demographic characteristics questionnaire<span dir="RTL">.</span> Data were analyzed using SPSS-16 and descriptive and analytical statistics (chi-square, independent t-test, one-way analysis of variance, and Tukey post-hoc test)<span dir="RTL">.</span> (P-value<0.05)<span dir="RTL">.</span><br> <strong><em>Results</em></strong><strong>:</strong> The results revealed that marital satisfaction in the non-elderly group (11.370<span dir="RTL">&plusmn;</span>511.50) was significantly higher than the elderly group (10.296<span dir="RTL">&plusmn;</span>901.55) (P<0.05)<span dir="RTL">.</span> Examining the factors related to the level of marital satisfaction, it was found that the components of income level, occupation, and level of education in both groups were directly related to the marital satisfaction score<span dir="RTL">.</span> The number of children in the non-elderly group is inversely and in the elderly group was directly related to marital satisfaction (P<0.05)<span dir="RTL">.</span><br> <strong><em>Conclusion:</em></strong> It seems necessary to make decisions to improve the factors related to marital satisfaction in the elderly as the elderly population is growing<span dir="RTL">.</span> Moreover, to achieve the standard levels of health, it is necessary to pay attention to all aspects of health in different age groups<span dir="RTL">.</span> marital satisfaction, elderly, non-elderly 31 38 http://nmcjournal.zums.ac.ir/browse.php?a_code=A-10-706-2&slc_lang=en&sid=1 Fatemeh sadat Izadi-Avanji fs.izadi@gmail.com 10031947532846007347 10031947532846007347 No Assistant Professor, Departments of Nursing, School of Nursing and Midwifery, Kashan University of Medical Sciences, Kashan, Iran Anahita Takbiri Boroujeni anahita.takbiri123@gmail.com 10031947532846007348 10031947532846007348 Yes Instructor of Nursing, Departments of Nursing, School of Nursing and Midwifery, Shahroud University of Medical Sciences, Shahroud, Iran Malihe Imeni malihe.imeni@yahoo.com 10031947532846007349 10031947532846007349 No Instructor of Nursing, Departments of Nursing, School of Nursing and Midwifery, Shahroud University of Medical Sciences, Shahroud, Iran Hamid Reza Gilasi gilasi@kaums.ac.ir 10031947532846007350 10031947532846007350 No Departments of Epidemiology & Biostatistics, Kashan University of Medical Sciences, Kashan, Iran Malihe Amerian m.amerian43@yahoo.com 10031947532846007351 10031947532846007351 No Instructor of Midwifery, Departments of Midwifery, School of Nursing and Midwifery, Shahroud University of Medical Sciences, Shahroud, Iran