Always, due to the dwindling strength, weakness of mental powers, the multiplicity of physical and mental illness, lack of ability to perform everyday tasks, mood imbalances, poverty, busy elderly family supervisors, etc., it is hardly possible to take care of the elderlies by first degree family members or best friends. Sometimes, despite the inner propensity of the elderly's family, there is no choice but to transfer the elderly to various charitable institutions or public or private nursing homes. Therefore, it is important to know the QOL of elderlies in nursing homes, their fate and their life style compared with those at home. In this regard, our study revealed that the QOL scores of the elderlies living in nursing homes in all the scales were significantly lower than those of the elderlies living with families. Lower QOL of nursing home residents may be due to chronic diseases and ignorance of their families to care for them. Low scores of mental and social health of elderlies in nursing homes can be due to their limitations in social communication. The elderly often live in isolation and think about past or are saddened for died spouse or their out-of-reach children. Undoubtedly, such isolation can lead to depression and could affected mental health. According to the results, QOL of females in vitality and mental health were better compared with males in nursing homes, but the differences of QOL between females and males, except for two dimensions of vitality and mental health, were not significant. It seems that superiority in mental health of females compared with males in nursing homes was due to extraversion and their willingness to communicate and share their thoughts and feelings with others, leading to mental discharge and females' mental relaxation. In contrary, unwillingness of males to express problems and share feelings had affected their mental health and had led to depression. Certainly, collaborative work, meetings, group-based training and social entertainments can be effective in promoting mental health in males living in nursing homes. Superiority of males' QOL who lived with family in vitality scale compared with females of this group could be due to spending more time out of home and contact with others. In contrast, females spend more time at home alone and their social communications are very limited. This isolation has led to lowered vitality of females than males. Family communication, cultural reform in the context of women's relationships, media training to increase social communication, and community facilities to respond to the social needs of women (theory of Maslow's hierarchy of needs) (
13) can be effective in reducing the isolationism. A similar study recently showed that although the QOLs of females who lived with families were lower than males of the same conditions, it was better towards females in nursing homes. These results were consistent with our study (
11). In view of Alexandre et al. living with family and getting involved with child development and finance will cause seniors to stay active and social (
14). Another study had similar results with ours, concluding that the level of education was effective on increasing the QOL, so that with increase of the level of education, the QOL scores increased in all dimensions (
15). This achievement confirms that higher education will lead to greater awareness and positive attitude to life and adaptation power increase, so that the ability to compliance with the existing state enhances the QOL in all dimensions. According to the obtained results, increase in elderly education has not been effective on increasing the mental health. Indeed, their mental health and perception of emotional problems were not related to educational levels. However, the mentioned dimensions were related to cultural issues, religious beliefs and social settings in which they have grown. On the other hand, based on the result of one study, higher education was associated with lower expression of emotional and psychological issues (
16). Although the level of education did not play a major role in mental health and feelings of elderlies, it was a motivation for studying and acquiring scientific and artistic degrees. Increased self-esteem in elderlies can make them feel more positive and useful for their society. Educated people spend the aging and leisure time with more diverse entertainments and achieve a more pleasurable life. Most of the elderly people in nursing homes had lost their spouses and had the lowest QOL. Elderlies who had been separated from their spouses (divorced) also had lower QOL scores. A similar study showed that there was a significant relationship between the QOL of single, married and divorced people; the mean score of absolute QOL of divorced ones was less than that of the single and married ones (
17). It could possibly be due to living with the spouse and in a family. Of course, living in a household has a higher QOL, which was in accordance with our results. However, this condition does not conflict with superiority of living with families. A review of the available evidence regarding the loneliness of the elderlies indicates the origin of many cases of unstable mental health such as depression, suicide and extreme despair is loneliness (
17-
19). In a study, loneliness was described as extremely distressing emotional conditions; a negative experience which is unpleasant, agonizing, difficult, frightening and painful; it was also introduced as a dark fate (
20). Although there are many barriers to reduce the loneliness of the elderly in society, a successful treatment of loneliness may reduce the serious side effects such as depression. Furthermore, increased social contact can cause health promotion of elderlies. Structural barriers may include cultural barriers (taboo in society for second marriage, considering it as dishonor), lack of adequate facilities for elderlies spending time outside the house and lack of social support for them by the government. Like other studies, our results showed that marital and social support were associated with increased QOL (
21); existence of a spouse can increase life satisfaction of elderlies from the nursing point of view (
22,
23). The best way to prevent aging effects is continues social activities, no doubts continuing these activities under the protection of the family and relatives is easier and more suitable than in nursing home. Several studies have confirmed this result in Iran that the QOL of married elderlies has been better than that of the single ones (
24-
27). Comparing the attitudes of married and single elderlies of the ageing period, in addition to the married elderly having a better attitude compared with the single elderlies, married elderlies at homes showed a better attitude compares with married elderlies in nursing homes. Seniors who were taken care of at home were healthier and enjoyed more of their lives both physically and mentally. Greater independence and freedom, possibility of studying, speaking with family members, visiting friends and sense of belonging to family has led them to have a better sense about life. Generally, two categories should be considered about the valuation of the elderlies; firstly, the objective issue of an elderly means life with family or separately, the frequency of visiting, admissions of orders, permission of elderly affairs, and finally financial assistance and services to. Secondly, the mental imagery of an elderly consists of children and relatives' mentalities in terms of responsibility, care and sustenance, accepting the thoughts and opinions of the elderly and tendency to living near them. Therefore, building the culture in the community to overcome structural barriers requires the cooperation and participation of elderlies' families. Therefore, taking care of elderlies at home is very effective in resolving cultural and social barriers. According to specific needs in this period, QOL in elderlies can be intimidated easily. Hence, considering the contextual factors affecting the QOL in old ages is potentially important. Given the values embedded in the national and religious culture of the Iranian society, home is the best and most suitable place for taking care of elderlies to supervise and resolve their emotional problems. Respect for elderlies among children and adolescents should be established through training in family environments and mass media. It is necessary to recognize the value of age and give responsibility of new roles to elderlies, so that they do not feel useless and unemployed and everyone would be glad of blessing them at home. This study also suggests that keeping elderlies at home rather than nursing homes, by providing chances for marriage, education, and more social activities, could be helpful to increase their QOL. Due to non-availability of sufficient number of elderlies, the samples were not matched; therefore, future studies with larger sample sizes and matching is proposed.