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It has also demonstrated sensitivity to change over time. Finally, the validity of measuring separate areas, or dimensions, of quality of life was supported by the differential responsiveness of subscales when applied to groups known to differ along the dimensions of physical, functional, social, and emotional well-being. Perceived social support from family, friends, and significant others was assessed using the Multidimensional Scale of Perceived Social Support (MSPSS) [39], which is a 12-item measure comprising three subscales: support from friends, support from family, and support from significant others. There are four items per subscale, each with response options ranging from 1?=?��Very strongly disagree�� to 7?=?��Very strongly agree��. http://www.selleck.cn/products/mi-773-sar405838.html Higher scores on each of the subscales indicate higher levels of perceived support, and a sum of the three scales yields a summary score. http://www.selleckchem.com/products/Imatinib-Mesylate.html The construct and concurrent validity of the MSPSS has been supported with correlations with relevant measures of anxiety, depression, and previously validated social support scales [39]. Previous studies suggest a low impact of social desirability bias influencing subject response [39]. The MSPSS has also demonstrated strong internal consistency (Chronbach's alpha?=?0.85�C0.91) and stability (r?=?0.72 to 0.85) over a 3-month period for all three subscales [39]. Participant characteristics were summarized using descriptive statistics. Bivariate analyses were conducted comparing current smokers versus quitters by using chi-squared tests for categorical variables and independent samples t-tests for continuous variables. We then developed a binary logistic regression model, forcing entry of age, gender, ethnicity, marital status, and income level and using backward stepwise entry of factors associated with smoking status per the bivariate analyses at p? http://www.selleckchem.com/products/VX-770.html $30. We intended to recruit six participants to fill each of the following four categories: (i) lung or head/neck cancer survivors who continued to smoke post cancer diagnosis; (ii) lung or head/neck cancer survivors who stopped smoking since cancer diagnosis; (iii) survivors of other smoking-related cancers who continued to smoke post cancer diagnosis; and (iv) survivors of other smoking-related cancers who stopped smoking since cancer diagnosis. Participants were screened for smoking status and segmented into four categories.