We used the QoL questionnaire that was developed in 1984 by Carol Estwing Ferrans and Marjorie Powers [26]. The instrument consists of two parts. The first part measures satisfaction with various aspects of life and the second measures the importance of the same aspects. Importance ratings are used to weigh the satisfaction responses. Therefore, the scores reflect the respondents’ satisfaction with the aspects of life as they value. Items rated as more important have a greater impact on scores than those of lesser importance. The scores are calculated both for overall QoL and four subscales of health and functioning; psychological/spiritual; social and economic; and family