| Level I | Good quality evidence |
Systematic review of RCTs with consistent findings High quality individual RCT |
| Level II |
Limited quality patient orientated evidence |
Systematic review of lower quality studies or studies with inconsistent findings Low quality clinical trial Cohort studies Case-control studies |
| Level III | Other |
Consensus guidelines, extrapolations from bench research, usual practice, opinion, disease-oriented evidence (intermediate or physiologic outcomes only), or case series |
[39] Desmopressin, oral/IV/SC/nasal spray: Oiso Y, Robertson GL, Nørgaard JP, and Juul KV. Treatment of Neurohypophyseal Diabetes Insipidus. J Clin Endocrinol Metab 98: 3958–3967, 2013. https://www.ncbi.nlm.nih.gov/pubmed/23884783
Desmopressin, oral/IV/SC/nasal spray: British National Formulary, March 2017-September 2018. https://www.bnf.org/