Table 1.
Quality assessment of the included studies
| Study | Outcome | Study design | Quality assessment tool | Total score | Quality |
|---|---|---|---|---|---|
| Wang et al., 2008 [21] | Cost | Cross-sectional study | AHRQ | 6 | Moderate |
| Liu et al., 2009 [22] | Cost | Cross-sectional study | AHRQ | 6 | Moderate |
| Wang et al., 2012 [23] | Cost | Cross-sectional study | AHRQ | 6 | Moderate |
| Deng et al., 2016 [24] | Cost | Cross-sectional study | AHRQ | 5 | Moderate |
| Ku et al., 2016 [25] | Cost | Cross-sectional study | AHRQ | 7 | Moderate |
| Yan et al., 2019 [26] | Cost | Cross-sectional study | AHRQ | 8 | High |
| Huang et al., 2020 [27] | Cost | Cross-sectional study | AHRQ | 7 | Moderate |
| Wu et al., 2020 [28] | Cost | Cross-sectional study | AHRQ | 6 | Moderate |
| Tang, 2006 [29] | QoL | Cross-sectional study | AHRQ | 7 | Moderate |
| Chen et al., 2009 [30] | QoL | Cross-sectional study | AHRQ | 9 | High |
| Ai, 2011 [32] | QoL | Cross-sectional study | AHRQ | 7 | Moderate |
| Che et al., 2011 [33] | QoL | Cross-sectional study | AHRQ | 7 | Moderate |
| Lian et al., 2011 [34] | QoL | Cross-sectional study | AHRQ | 5 | Moderate |
| Chan et al., 2011 [35] | QoL | Cross-sectional study | AHRQ | 7 | Moderate |
| Huang et al., 2015 [37] | QoL | Cross-sectional study | AHRQ | 8 | High |
| Huang, 2016 [38] | QoL | Cross-sectional study | AHRQ | 7 | Moderate |
| Wu et al., 2016 [39] | QoL | Cross-sectional study | AHRQ | 7 | Moderate |
| Su et al., 2019 [40] | QoL | Cross-sectional study | AHRQ | 7 | Moderate |
| Zhang et al., 2021 [41] | QoL | Cross-sectional study | AHRQ | 8 | High |
| He, 2009 [31] | QoL | Case–control study | NOS | 5 | Moderate |
| Yi et al., 2015 [36] | QoL | Case–control study | NOS | 6 | Moderate |
AHRQ Agency for Healthcare Research and Quality, NOS Newcastle–Ottawa Scale, QoL quality of life