Sandvei 1979

Methods	Randomised by a table of random numbers. Placebos were not used but it was a double blind trial. No mention of blind outcome assessment. Method of allocation concealment not stated.
Participants	Symptomatic women with trichomoniasis, between 13‐57 years, in Norway. Those living too far to attend follow up were excluded.
Interventions	Metronidazole 2 g versus tinidazole 2 g versus ornidazole 2 g. All were given oral as a single dose. Same medication with written instructions for the partner.
Outcomes	Parasitological cure on day 3 and around 4 weeks. Side effects.
Notes	Diagnosis by wetmount and culture. Cultures for candida and gonorrhoea were also taken. Side effects were reported in all persons who took the drug (including the partners). Loss to follow up was 2/25, 1/25, and 0/25 in the metronidazole, tinidazole, and ornidazole groups, respectively on day 3 and 7/25, 6/25, and 6/25 after 4 weeks.