Table 2.

Characteristics of included articles.

	Top 10 (n = 90)	Top 12–50 (n = 90)	Total (n = 180)
Number of paragraphs in background	3 [3–4]	4 [3–5]	3 [3–5]
Number of cited articles in background	14 [10–19]	18 [12–23]	15 [11–21]
Word counts in background	388 [279–493]	465 [344–585]	433 [299–539]
Number of included articles in SR	36 [20–93]	18 [11–34]	24 [13–50]
Number of authors	8[6–11]	5 [4–7]	7 [5–9.5]
Number of tables	2 [1–3]	3 [2–4]	2 [1–3]
Number of figures	3 [2–5]	2 [1–3]	3 [1–4]
Number of citations	59 [44–84]	56 [42–80]	57 [43–82]
Presence of appendix	87 (97)	61 (68)	148 (82)
Study type∗
NMA (intervention)	9 (10)	3 (3)	12 (7)
intervention	40 (44)	37 (41)	77 (43)
DTA	2 (2.2)	3 (3)	5 (3)
prognosis	19 (21)	11 (12)	30 (17)
prevalence/incidence	11 (12)	8 (9)	19 (11)
Scoping review, qualitative synthesis	6 (7)	26 (29)	32 (18)
meta-epidemiology	3 (3)	2 (2)	5 (3)