Review Article
Epidemiology of Neuromyelitis Optica in the World: A Systematic Review and Meta-Analysis
Table 1
Quality assessment scores of multiple sclerosis incidence and prevalence studies.
| Study (year) | Q1: target population described? | Q2: cases from entire population/probability sampling? | Q3: response rate >70%? | Q4: nonresponders clearly described? | Q5: sample representative of population? | Q6: data collection methods standardized? | Q7: validated criteria to assess disease? | Q8: were estimates given with confidence intervals? | Total score |
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Etemadifar et al. (2014) [9] | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 8/8 |
Pandit and Kundapur (2014) [13] | Yes | Yes | NR | Yes | Yes | No | Yes | No | 5/8 | Jacob et al. (2013) [10] | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 8/8 | Houzen et al. (2012) [14] | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 8/8 | Cossburn et al. (2012) [8] | Yes | Yes | NR | NA | Yes | Yes | Yes | Yes | 6/7 | Asgari et al. (2011) [7] | Yes | Yes | NR | NA | Yes | Yes | Yes | Yes | 6/7 |
Cabrera-Gómez et al. (2009) [12] | Yes | Yes | NR | NA | Yes | Yes | Yes | Yes | 6/7 | Cabre et al. (2009) [11] | Yes | Yes | NR | NA | Yes | Yes | Yes | Yes | 6/7 | Rivera et al. (2008) [15] | Yes | NR | NR | NR | NR | No | Yes | No | 2/8 |
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NR: not reported; NA: not applicable; NC: not clear.
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