. 2018 Jul 20;84(10):2303–2310. doi: 10.1111/bcp.13672

Table 2.

Changes in median (interquartile range) monthly admissions and presentations for non‐novel psychoactive substance (NPS) drug toxicity for the 12 months before the methylphenidate temporary class drug order (April 2014 to March 2015) and 12 months of 2016 (January to December 2016)

Drug class		Pre	Post	P value
Conventional opioids	Presentations	32.5 (26–40; n = 12)	31 (23–37; n = 12)	P = 0.560
Conventional opioids	Admissions	17 (15–23; n = 12)	13.5 (12–22; n = 12)	P = 0.282
Conventional stimulants	Presentations	24 (21–31; n = 12)	37 (26–39; n = 12)	P = 0.010
Conventional stimulants	Admissions	7.5 (3–8; n = 12)	8.5 (5–10; n = 12)	P = 0.294
Non‐NPS benzodiazepines	Presentations	15.5 (12–19; n = 12)	16.5 (14–22; n = 12)	P = 0.433
Non‐NPS benzodiazepines	Admissions	8 (7–9; n = 12)	7.5 (6–10; n = 12)	P = 0.743
Other/unknown	Presentations	29.5 (26–30; n = 12)	31 (28–39; n = 12)	P = 0.153
Other/unknown	Admissions	5.5 (2–8; n = 12)	7 (5–9; n = 12)	P = 0.160