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. 2023 Mar 27;2023(3):CD009885. doi: 10.1002/14651858.CD009885.pub3

Comparison 5. Serious adverse events: parallel‐group trials and first‐period cross‐over trials.

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
5.1 Proportions of participants with serious adverse events (SAE) 26 3673 Risk Ratio (IV, Random, 95% CI) 0.80 [0.39, 1.67]
5.2 Nervous system (including psychiatry) 12 4199 Risk Ratio (IV, Random, 95% CI) 0.70 [0.29, 1.71]
5.2.1 Aggression 1 303 Risk Ratio (IV, Random, 95% CI) 0.50 [0.05, 5.49]
5.2.2 Concussion 1 303 Risk Ratio (IV, Random, 95% CI) 0.34 [0.01, 8.17]
5.2.3 Loss of consciousness 1 221 Risk Ratio (IV, Random, 95% CI) 0.33 [0.01, 8.02]
5.2.4 Psychosis 4 919 Risk Ratio (IV, Random, 95% CI) 0.81 [0.13, 5.12]
5.2.5 Syncope 3 741 Risk Ratio (IV, Random, 95% CI) 1.39 [0.23, 8.47]
5.2.6 Suicidal ideation 6 1032 Risk Ratio (IV, Random, 95% CI) 1.63 [0.07, 38.55]
5.2.7 Suicidal behaviour 2 0 Risk Ratio (IV, Random, 95% CI) Not estimable
5.2.8 Oppositional behaviour/negativism 1 217 Risk Ratio (IV, Random, 95% CI) 0.17 [0.01, 4.04]
5.2.9 Adjustment disorder 1 230 Risk Ratio (IV, Random, 95% CI) 0.78 [0.03, 18.91]
5.3 Digestive system 2 414 Risk Ratio (IV, Random, 95% CI) 2.11 [0.22, 20.04]
5.3.1 Appendicitis 2 414 Risk Ratio (IV, Random, 95% CI) 2.11 [0.22, 20.04]
5.4 Cardiovascular systems 2 280 Risk Ratio (IV, Random, 95% CI) 1.02 [0.11, 9.65]
5.4.1 Haematoma 1 221 Risk Ratio (IV, Random, 95% CI) 0.33 [0.01, 8.02]
5.4.2 Tachycardia 1 59 Risk Ratio (IV, Random, 95% CI) 3.10 [0.13, 73.14]
5.5 Respiratory systems 1 606 Risk Ratio (IV, Random, 95% CI) 1.01 [0.11, 9.62]
5.5.1 Bronchitis 1 303 Risk Ratio (IV, Random, 95% CI) 0.34 [0.01, 8.17]
5.5.2 Asthma 1 303 Risk Ratio (IV, Random, 95% CI) 3.02 [0.12, 73.54]
5.6 Urinary system 2 578 Risk Ratio (M‐H, Fixed, 95% CI) 2.14 [0.23, 19.81]
5.6.1 Renal cyst 1 275 Risk Ratio (M‐H, Fixed, 95% CI) 1.49 [0.06, 36.27]
5.6.2 Kidney infection 1 303 Risk Ratio (M‐H, Fixed, 95% CI) 3.02 [0.12, 73.54]
5.7 Skeletal and muscular system (including pain) 1 221 Risk Ratio (M‐H, Fixed, 95% CI) 0.33 [0.01, 8.02]
5.7.1 Clavical fracture 1 221 Risk Ratio (M‐H, Fixed, 95% CI) 0.33 [0.01, 8.02]
5.8 Immune system (including infections) 1 303 Risk Ratio (IV, Random, 95% CI) 3.02 [0.12, 73.54]
5.8.1 Cyst rupture 1 303 Risk Ratio (IV, Random, 95% CI) 3.02 [0.12, 73.54]
5.9 Other 2 524 Risk Ratio (IV, Random, 95% CI) 1.00 [0.10, 9.55]
5.9.1 Drug toxicity 1 303 Risk Ratio (IV, Random, 95% CI) 0.34 [0.01, 8.17]
5.9.2 Overdose 1 221 Risk Ratio (IV, Random, 95% CI) 2.97 [0.12, 72.20]