Effects of Health Literacy Intervention on Health Literacy Level and Glucolipid Metabolism of Diabetic Patients in Mainland China: A Systematic Review and Meta-Analysis

Table 2

Quality assessment of included studies.

First author, year (reference no.)	Type	①	②	③	④	⑤	⑥	⑦	⑧	⑨	Score
Bao JL, 2019 [33]	RCT	Yes	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	7
Cao YF, 2020 [23]	RCT	Yes	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	7
Cheng L, 2017 [34]	RCT	Yes	Yes	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	8
Chen YY, 2020 [22]	RCT	Yes	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	7
Hao ML, 2019 [31]	RCT	Yes	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	7
Li CF, 2017 [43]	RCT	Unclear	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Li L, 2020 [21]	RCT	Yes	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	7
Li L, 2020 [20]	RCT	Yes	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	7
Liu QH, 2020 [19]	RCT	No	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Liu QN, 2018 [40]	RCT	Unclear	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Li YF, 2015 [52]	RCT	Yes	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	7
Ma GZ, 2019 [29]	RCT	Yes	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	7
Peng Y, 2021 [15]	RCT	Yes	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	7
Tu Y, 2018 [39]	RCT	Yes	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	7
Wang L, 2019 [24]	RCT	Yes	Yes	Yes	No	Yes	Yes	Unclear	Yes	Yes	7
Wang Q, 2018 [38]	RCT	Unclear	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Wu P, 2019 [28]	RCT	Unclear	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Xu YL, 2020 [10]	RCT	Yes	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	7
Yao XQ, 2019 [27]	RCT	Yes	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	7
You HQ, 2020 [18]	RCT	Yes	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	7
Yu F, 2020 [17]	RCT	Yes	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	7
Zhang JB, 2019 [26]	RCT	Unclear	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Zhang N, 2018 [37]	RCT	Yes	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	7
Zhang RT, 2016 [47]	RCT	Unclear	Unclear	Unclear	Yes	Yes	Yes	Unclear	Yes	Yes	5
Zhang XH, 2019 [25]	RCT	Yes	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	7
Zhang Y, 2018 [36]	RCT	No	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Zhao FY, 2018 [35]	RCT	Yes	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	7
Cheng LL, 2019 [32]	Non-RCT	Unclear	Unclear	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Li YJ, 2019 [30]	Non-RCT	No	No	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Ouyang HG, 2019 [9]	Non-RCT	No	No	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Pan JY, 2015 [51]	Non-RCT	No	No	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Qiao W, 2014 [53]	Non-RCT	No	No	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Shi M, 2016 [45]	Non-RCT	No	No	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Wang N, 2021 [14]	Non-RCT	No	No	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Yang FH, 2017 [41]	Non-RCT	No	No	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Zhang Y, 2016 [46]	Non-RCT	No	No	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Zhong Y, 2020 [16]	Non-RCT	No	No	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Chen GM, 2013 [54]	CBA	No	No	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Gao YY, 2017 [44]	CBA	No	No	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Hu GS, 2016 [49]	CBA	No	No	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Li SF, 2010 [55]	CBA	No	No	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Liu XM, 2016 [48]	CBA	No	No	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Su QX, 2017 [42]	CBA	No	No	Yes	Yes	Yes	Yes	Unclear	Yes	Yes	6
Wen XQ, 2015 [50]	CBA	No	No	Yes	Yes	No	Yes	Unclear	Yes	Yes	5

①: random sequence generation; ②: allocation concealment; ③: baseline outcome measurements similar; ④: baseline characteristics similar; ⑤: incomplete outcome data; ⑥: knowledge of the allocated interventions adequately prevented during the study; ⑦: protection against contamination; ⑧: selective outcome reporting; ⑨: other risks of bias; CBA: controlled before-and-after trials; non-RCT: nonrandomized controlled trials; RCT: randomized controlled trials.