|
| Study | Study population | Number of subjects | Results |
|
| Barros et al., 2011 [22] | Patients with severe asthma in Brazil | 508 | Obese asthmatics had worse asthma control |
|
Peters et al., 2011 [27] | Adult outpatients in South Texas | 429 | Obese asthmatics had worse quality of life and lower FVC but no difference in asthma severity and health care utilization |
| Youkou et al., 2011 [30] | Japanese outpatients | 3146 | Obese asthmatics had more severe disease and higher utilization of inhaled salmeterol and leukotriene receptor antagonists |
| Sastre et al., 2010 [32] | Spanish outpatients | 607 | No significant association between obesity and asthma control |
| Stanford et al., 2010 [18] | American outpatients | 2238 | Obesity was associated with worsened asthma control as measured by ACT. |
Clerisme-Beaty et al.,
2009 [33] | Urban outpatients in the United States | 292 | No association between asthma control and obesity |
| Demoly et al., 2009 [20] | European internet survey | 2337 | Obesity was associated with worsened asthma control as measured by ACT. |
| Haselkorn et al., 2009 [31] | Adult outpatients | 2396 | Worsened control of asthma with weight gain |
| Lessard et al., 2008 [24] | Adult outpatients in Canada | 88 | Obese asthmatics had worse asthma control |
| Mosen et al., 2008 [25] | Adult members of managed care organization | 1113 | Obese asthmatics had worse asthma-related quality of life, asthma control, and history of asthma related hospitalizations. |
| Taylor et al., 2008 [29] | Outpatient adults from 4 states | 3095 | Obese asthmatics had worse more severe asthma based on measurement of several different factors |
| Schatz et al., 2007 [19] | Adult members of managed care organization | 570 | Obesity was associated with worsened asthma control as measured by ACT. |
| Laforest et al., 2006 [21] | French outpatients | 1282 | Obesity was associated with worsened asthma control as measured by ACT. |
| Lavoie et al., 2006 [23] | Canadian outpatients | 382 | Obese asthmatics had worse asthma control and quality of life but not asthma severity |
| Saint-Pierre et al., 2006 [26] | French outpatients, from 4 university-based clinics | 406 | Overweight/obese asthmatics less likely to develop better control of asthma |
| Akerman et al., 2004 [28] | Adults outpatients in the United States | 143 | Linear relationship between asthma severity and BMI |
|
