Injected Morphine in Postoperative Pain Henry J McQuay, Dm, Dawn Carroll, BA, Hons, R.Andrew Moore, DSc Journal of Pain and Symptom Management Volume 17, Issue 3, Pages 164-174 (March 1999) DOI: 10.1016/S0885-3924(98)00126-2
Fig. 1 Relation between the proportion of patients achieving at least 50% pain relief with 10 mg intramuscular morphine and with placebo in 15 trials Journal of Pain and Symptom Management 1999 17, 164-174DOI: (10.1016/S0885-3924(98)00126-2)
Fig. 2 Funnel plot of relative benefit against total number of patients in the morphine/placebo comparison Journal of Pain and Symptom Management 1999 17, 164-174DOI: (10.1016/S0885-3924(98)00126-2)
Fig. 3 Relative efficacy of single doses of analgesics compared with placebo to produce at least 50% pain relief in moderate or severe postoperative pain (oral doses except for morphine). Data for drugs other than morphine are from other published systematic reviews,8,9 and for ibuprofen see Reference 7 Journal of Pain and Symptom Management 1999 17, 164-174DOI: (10.1016/S0885-3924(98)00126-2)