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Original Research |

Differences in Health-related Quality of Life Between New Mexican Hispanic and Non-Hispanic White Smokers

Alejandro A. Diaz, MD, M.PH; Hans Petersen, MS; Paula Meek, PhD, RN; Akshay Sood, MD, MPH, FCCP; Bartolome Celli, MD, FCCP; Yohannes Tesfaigzi, PhD
Author and Funding Information

Conflict of interest statement

Dr. Diaz has received speaker fees from Novartis, Inc. Drs. Meek, Sood, Celli, and Tesfaigzi and Mr. Petersen have no conflict of interest to disclose related to this manuscript.

Funding

This work was supported by the State of New Mexico (appropriation from the Tobacco Settlement Fund) and NIH Grants: Dr. Diaz, K01HL118714; Dr Sood, K23 HL 094531-01 and 5M01 RR00997; Dr. Tesfaigzi, R01 HL068111 and R01 ES015482. Dr. Diaz is also supported by the Brigham and Women’s Hospital Minority Faculty Career Development Award.

1Brigham and Women’s Hospital & Harvard Medical School, Boston, MA

2Lovelace Respiratory Research Institute, Albuquerque, NM

3College of Nursing, University of Colorado-Denver, Denver, CO

4Department of Medicine University of New Mexico, Albuquerque, NM

Corresponding Author: Alejandro A. Diaz, M.D., M.P.H. Division of Pulmonary and Critical Care Medicine Department of Medicine Brigham and Women’s Hospital 75 Francis Street Boston, MA 02115.


Copyright 2016, American College of Chest Physicians. All Rights Reserved.


Chest. 2016. doi:10.1016/j.chest.2016.06.011
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Abstract

Introduction  Smoking is associated with impaired health-related quality of life (HRQL) across all populations. Because decline in lung function and risk for COPD are lower in New Mexican Hispanic smokers compared to their non-Hispanic White (NHW) counterparts, we investigated whether HRQL differs between these two racial-ethnic groups and determined the factors that contribute to this difference.

Methods  We compared the score results of the Medical Outcomes Short-Form 36 Health Survey (SF-36) and St George’s Respiratory Questionnaire (SGRQ) in 378 Hispanics and 1,597 non-Hispanic whites (NHW) enrolled into the Lovelace Smokers’ Cohort (LSC) from New Mexico. The associations of race-ethnicity with SGRQ and SF-36 were assessed using multivariable regression.

Results  Physical functioning (difference -4.5, P=0.0008) but not mental health or role emotional domains of the SF-36 was worse in Hispanic smokers than their NWH counterparts in multivariable analysis. SGRQ total score and activity and impact subscores were worse in Hispanic (vs. NHW) smokers after adjustment for education level, current smoking, pack-years smoked, body mass index, number of comorbidities, and forced expiratory volume in one second % predicted (difference range, 2.9 to 5.0, all comparisons P≤0.001). While the difference in the SGRQ activity domain was above the clinically important difference of 4 units, the total score was not.

Conclusion  New Mexican Hispanic smokers have clinically relevant lower HRQL than their NHW counterparts. A perception of diminished physical functioning and impairment in daily-life activities contribute to the poorer HRQL among Hispanics.


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