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. Author manuscript; available in PMC: 2014 Jun 9.
Published in final edited form as: J Occup Environ Med. 2011 Sep;53(9):975–980. doi: 10.1097/JOM.0b013e3182305282

FIGURE 1.

FIGURE 1

Panels A and B show the correlation between weight and apnea + hypopnea index in the control and World Trade Center Medical Monitoring and Treatment Program (WTCMMTP) population. A significant and positive correlation (r = 0.29, P = 0.044) was found only in the control population (panel A). Panels C and D show the correlation between body mass index and apnea + hypopnea index in the control and WTCMMTP population. Again a significant and positive correlation (r = 0.36, P = 0.0096) was found only in the control population (panel C).