Table 5. Studies presenting detailed information about vacuum bell therapy.

Study	Year	No. of patients	Age (years)	Follow-up (months)
Schier et al. (4)	2005	60	14.8 [6.1–34.9]	10 [2–18]
Haecker et al. (28)	2006	34	17.8 [6–52]	10.4 months duration of treatment
Haecker (35)	2011	93*	17.8 [3–61]	16 [3–60]
Haecker (36)	2011	133*	16.21 [3–61]	16 [3–60]
Lopez et al. (37)	2016	73	Adults/children	13 [6–24]
Haecker et al. (38)	2016	300*	16.28 [2–61]	27.6 [1–73]
Haecker et al. (39)	2016	434*	16.2 [2–61]	27.9 [1–76]
Togoro et al. (40)	2018	30	8–35	NA
Obermeyer et al. (41)	2018	115	12.7 [4–23]	12 [4–48]
Sesia et al. (42)	2018	53	14 [6–20]	NA
St-Louis et al. (43)	2019	31	14 [6–21]	18 [12–24]
Deng et al. (44)	2020	42	3.6	11.1
Toselli et al. (45)	2021	54*	12.6±6.0	13.2
Jung et al. (46)	2021	33	16.48±8.21	12
Yi et al. (47)	2021	63	15.4±6.23	12
Luo et al. (48)	2022	139	4.6±1.7	9
Toselli et al. (49)	2022	186*	11.9±6.5	24

Data are presented as median, median [range] or mean ± standard deviation, unless otherwise indicated. *, cumulative study building on previous patients group. NA, not applicable.