Table 5.
Numbers of non-fatal self poisonings with more than 32 tablets (Oxford, Manchester, and Derby combined). Values are percentage change in numbers (95% confidence intervals) unless stated otherwise
|
Mean (No) of tablets in relation to period of legislation
|
|||||||||
|---|---|---|---|---|---|---|---|---|---|
| Drug | Year before | Year after | 2nd year after | 3rd year after | Year after legislation v year before | P value | Years 2 and 3 after legislation v year before | P value | P value for differences between years 2 and 3 after v year 1 after |
| Paracetamol alone | 30.7 (27.3 to 34.0) | 26.1 (22.5 to 29.6) | 23.0 (19.9 to 26.0) | 28.1 (24.6 to 31.6) | −15 (−31 to 4) | 0.12 | −16 (−29 to −1) | 0.04 | 0.87 |
| Any paracetamol | 26.4 (24.2 to 28.7) | 22.0 (19.8 to 24.3) | 20.7 (17.9 to 23.5) | 22.0 (19.9 to 24.1) | −17 (−28 to −3) | 0.02 | −20 (−29 to −9) | 0.001 | 0.63 |
| Salicylates alone | 41.2 (29.9 to 52.4) | 31.0 (19.8 to 42.3) | 17.7 (8.5 to 26.8) | 17.9 (8.2 to 27.6) | −24 (−57 to 35) | 0.36 | −56 (−74 to −24) | 0.004 | 0.07 |
| Any salicylates | 22.2 (17.3 to 27.1) | 16.2 (11.8 to 20.5) | 14.8 (10.0 to 19.7) | 11.6 (7.7 to 15.5) | −28 (−51 to 6) | 0.1 | −39 (−57 to −14) | 0.005 | 0.35 |
| Ibuprofen alone | 27.4 (18.0 to 36.8) | 25.4 (16.9 to 33.8) | 15.4 (9.4 to 21.3) | 22.9 (15.4 to 30.3) | −9 (−38 to 58) | 0.74 | −33 (−59 to 10) | 0.11 | 0.22 |
| Any ibuprofen | 17.5 (12.9 to 22.1) | 17.5 (13.0 to 22.1) | 11.0 (7.7 to 14.4) | 14.6 (10.8 to 18.3) | −2 (−34 to 47) | 0.93 | −29 (−50 to 2) | 0.07 | 0.09 |