Table.

Study characteristics

	Total (n=62)	Seroconversion studies (n=50)	Waning studies (n=12)
Region
Europe	23 (37%)	15 (30%)	8 (67%)
Asia	17 (27%)	17 (34%)	0
North America	13 (21%)	9 (18%)	4 (33%)
Central America	2 (3%)	2 (4%)	0
South America	3 (5%)	3 (6%)	0
>1 region	3 (5%)	3 (6%)	0
Australia	1 (2%)	1 (2%)	0
Study design
Clinical trial	14 (22%)	14 (28%)	0
Follow-up study	13 (21%)	2 (4%)	11 (92%)
Randomised trial	13 (21%)	12 (24%)	1 (8%)
Prospective study	11 (18%)	11 (22%)	0
Randomised controlled trial	11 (18%)	11 (22%)	0
Administration route
Subcutaneous	29 (47%)	28 (56%)	1 (8%)
Intramuscular	1 (2%)	1 (2%)	0
Other*	3 (4%)	3 (6%)	0
Not available	29 (47%)	18 (36%)	11 (92%)
Vaccine (n=87)
MMR-II (Merck)	30 (34%)	20 (28%)	10 (62%)
Priorix	16 (18%)	15 (21%)	1 (6%)
Not available	12 (14%)	11 (16%)	1 (6%)
Triviraten	5 (6%)	5 (7%)	0
Trimovax	5 (6%)	5 (7%)	0
MMR-Vax	3 (4%)	3 (4%)	0
Serum MMR	3 (4%)	3 (4%)	0
Pluserix	2 (2%)	0	2 (13%)
Tresivax	2 (2%)	2 (3%)	0
MMR (Razi Institute)	2 (2%)	2 (3%)	0
Cadila MMR	2 (2%)	2 (3%)	0
Other†	5 (6%)	3 (4%)	2 (13%)

87 vaccine combinations were used in the 62 studies identified. MMR=measles-mumps-rubella.

^*Aerosol versus subcutaneous, subcutaneous versus intramuscular, or disposable syringe jet injector versus needle-syringe.

^†MMR (SPIIPL), Berna MMR, Immravax, JCV-001, or Trivirix.