Table 2.

Baseline characteristics.

Author, year	Type of review	Total no. of studies included (n)	Total participants (n)	Follow-up duration (week)
Goyal et al.21	SR and MA	5	18,484	4–52
Li et al.22	SR and MA	14	18,469	12–52
Tenorio et al.20	SR and MA	12	18, 439	4–52
Venkatraman et al.23	SR and MA	17	21,131	4–52
Zhang et al.24	SR and MA	4	17,323	24–52
Uddin et al.25	SR and MA	7	17,816	4–52
De Filippo et al.26	SR and MA	11	18,315	4–52
Mutschlechner et al.27	SR and MA	10	18,200	4–52
Lin et al.28	SR and MA	6	3,956	4–52
Masson et al.29	SR and MA	7	3,892	4–24
Dai et al.30	SR and MA	10	4,104	4–52
Wang et al.31	SR and MA	5	625	6–12
Bhagavathula et al.32	SR and MA	3	388	12
Wang et al.33	SR and MA	11	4,391	4–52
Cicero et al.34	SR and MA	4	3,369	4–52
Khan et al.35	SR and MA	11	4,311	4–52
Cicero et al.36	SR and MA	10	3,788	4–52
Minno et al.37	SR and MA	7	4,236	4–52

SR: systematic review, MA: meta-analysis.