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. 2020 Oct 5;45(4):e48. doi: 10.5395/rde.2020.45.e48

Table 4. Quality assessment of studies using the Newcastle-Ottawa scale adapted for cross-sectional studies (n = 6).

Study Selection Comparability Outcome Study quality
Representation of the sample Sample size Non-respondents Assessment of the exposure Control of confounding factors Assessment of the outcome Statistical test
Gopi Krishna et al. [17] * * * * Low
Pozzobon et al. [19] * * * * Low
Ciobanu et al. [20] * * * * Low
Sadique et al. [3] * * * * Low
Stella et al. [21] * * * * Low
Kosturkov et al. [28] * * * * * Low

*No description/not justified/incomplete; Poor quality; Good quality.