Research Article
Presentations to Emergency Departments for COPD: A Time Series Analysis
Table 1
Patient demographics and time series characteristics.
| | | COPD ED visits, (%) | Mean monthly COPD ED visits/100,000 | Change in trend component, % | Seasonal high month | Seasonal low month |
| | Overall | 188,824 | 198.4 | −0.4 | March | August | | Sex | | | | | | | Female | 90317 (47.8) | 180.2 | 10.8 | March | August | | Age 55–64 | 25483 (28.2) | 113.2 | 8.6 | March | August | | Age 65+ | 64834 (71.8) | 234.5 | 20.2 | March | August | | Male | 98507 (52.2) | 218.6 | −9.7 | March | August | | Age 55–64 | 24132 (24.5) | 105.8 | −1.8 | January | August | | Age 65+ | 74375 (75.5) | 331.7 | −3.5 | March | August | | Zone | | | | | | | North | 45411 (24.0) | 463.9 | 40.6 | March | August | | Edmonton | 48314 (25.6) | 155.6 | 4.1 | December | August | | Central | 44111 (23.4) | 328.7 | −17.6 | March | August | | Calgary | 35160 (18.6) | 108.6 | −6.5 | March | August | | South | 15825 (8.4) | 184.3 | −6.9 | March | August |
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