Table 1.
Maximum cross-correlation coefficients of monthly environmental variables and notifications of haemorrhagic fever with renal syndrome: Changsha, China, 2005–2010
| Variable | Maximum coefficient | Lag values (month) |
|---|---|---|
| Mean temperature | 0·316* | 1 |
| Rainfall | 0·283* | 2 |
| Absolute humidity | 0·234* | 2 |
| MEI | 0·397** | 6 |
| NDVI value | ||
| Rice paddies | 0·321* | 2 |
| Orchards | 0·346** | 2 |
| Forest land | 0·282* | 2 |
| Residence | 0·334** | 1 |
MEI, Multivariate El Niño Southern Oscillation index; NDVI, Normalized difference vegetation index.
*
P < 0·05, ** P < 0·01.