Table 2.

Demographic characteristics of the included studies.

Study ID	Year	Study design	Assessed region	Sample size (n)	Mean age (in years)	Gender ratio	Assessment period (in mo)
Baião et al[18]	2022	RCT (double-blind)	United Kingdom	71	28.80 ± 8.93	45 females	1
Chahwan et al[19]	2019	RCT (double-blind)	Australia	71	36.65 ± 11.75	49 females	2
Rudzki et al[20]	2019	RCT (double-blind)	Poland	79	38.90 ± 12	43 females	2
Schneider et al[21]	2023	RCT (double-blind)	Switzerland	60	38.03 ± 11.32	36 females	1

RCT = randomized controlled trials.