Number and percentage of obese and normal weight patients receiving root drugs over the 18-month audit period.
| Obese | Normal weight | |||
|---|---|---|---|---|
| Number of root drugs | n | % | n | % |
| 0 | 184 | 16.0 | 270 | 23.5 |
| 1 | 129 | 11.2 | 172 | 15.0 |
| 2 | 107 | 9.3 | 158 | 13.7 |
| 3 | 115 | 10.0 | 114 | 9.9 |
| 4 | 100 | 8.7 | 92 | 8.0 |
| 5 | 80 | 7.0 | 70 | 6.1 |
| 6 | 76 | 6.6 | 64 | 5.6 |
| 7 | 60 | 5.2 | 52 | 4.5 |
| 8 | 43 | 3.7 | 45 | 3.9 |
| 9 | 43 | 3.7 | 23 | 2.0 |
| 10 | 46 | 4.0 | 20 | 1.7 |
| >10 | 167 | 14.5 | 70 | 6.1 |
χ2 test for trend: P<0.001.