Table 1.
Admissions for AECOPD and control diagnoses, influenza detection and AECOPD severity indicators for different periods.
| Only Jan to Mar, 2020 (A) | Only Jan to Mar, 2015–2019 (B) | All months, 2015–2019 (C) | P value (A vs B)a | P value (A vs C)a | P value (Masking) | P value (Temp) | P value (AQHI) | |
|---|---|---|---|---|---|---|---|---|
| Admissions, monthly average no. | ||||||||
| AECOPD | 41 | 92 | 77 | <0.005 | <0.005 | <0.001 | 0.045 | 0.315 |
| Heart failure | 73 | 89 | 69 | 0.086 | 0.448 | 0.217 | 0.173 | 0.250 |
| Intestinal obstruction | 27 | 23 | 24 | 0.192 | 0.347 | 0.398 | 0.933 | 0.877 |
| Iron deficiency anaemia | 21 | 17 | 19 | 0.062 | 0.385 | 0.186 | 0.775 | 0.797 |
| Influenza A or B detection, monthly average no. | ||||||||
| No. of viruses | 1888 | 3958 | 1966 | <0.005 | <0.005 | – | – | – |
| AECOPD severity indicators | ||||||||
| LOS >5 days, % (No/total) | 6.6 (8/122) | 9.2 (128/1385) | 8.6 (396/4627) | 0.410 | 0.513 | – | – | – |
| Mortality, % (No deaths/total) | 3.3 (4/122) | 2.3 (32/1385) | 2.5 (117/4627) | 0.528 | 0.553 | – | – | – |
AECOPD, acute exacerbation of chronic obstructive pulmonary disease; AQHI = Air Quality Health Index; LOS = length of stay; Temp = Temperature; - not applicable.
a
Log-linear modeling or Fisher exact tests.