Table 2. Data characteristics and variables included in linear regression analysis.
*Variable included in linear regression analysis; **The proportion was included as a fraction of 1.
| Actual month | Time from start of study period* | Monsoon* | Total number of incidents | Number of incidents involving health care workers | % of incidents involving health care workers*,** |
|---|---|---|---|---|---|
| January 2008 | 1 | 0 | 92 | 2 | 2.2 |
| February 2008 | 2 | 0 | 107 | 1 | 0.9 |
| Mars 2008 | 3 | 0 | 90 | 1 | 1.1 |
| April 2008 | 4 | 0 | 101 | 1 | 1.0 |
| May 2008 | 5 | 0 | 117 | 1 | 0.9 |
| June 2008 | 6 | 1 | 119 | 1 | 0.8 |
| July 2008 | 7 | 1 | 144 | 5 | 3.5 |
| August 2008 | 8 | 1 | 137 | 0 | 0.0 |
| September 2008 | 9 | 1 | 178 | 5 | 2.8 |
| October 2008 | 10 | 0 | 98 | 5 | 5.1 |
| November 2008 | 11 | 0 | 80 | 2 | 2.5 |
| December 2008 | 12 | 0 | 132 | 2 | 1.5 |
| January 2009 | 13 | 0 | 113 | 0 | 0.0 |
| February 2009 | 14 | 0 | 98 | 0 | 0.0 |
| Mars 2009 | 15 | 0 | 111 | 2 | 1.8 |
| April 2009 | 16 | 0 | 97 | 3 | 3.1 |
| May 2009 | 17 | 0 | 114 | 3 | 2.6 |
| June 2009 | 18 | 1 | 103 | 0 | 0.0 |
| July 2009 | 19 | 1 | 83 | 4 | 4.8 |
| August 2009 | 20 | 1 | 62 | 2 | 3.2 |
| September 2009 | 21 | 1 | 92 | 3 | 3.3 |
| October 2009 | 22 | 0 | 82 | 5 | 6.1 |
| November 2009 | 23 | 0 | 69 | 1 | 1.4 |
| December 2009 | 24 | 0 | 110 | 5 | 4.5 |