Table 2 Quality of included studies
From: The prevalence of obstructive sleep apnea in mild cognitive impairment: a systematic review
Author | Criteria for inclusion in the sample clearly defined? | Study subjects and the setting described in detail? | Exposure measured in a valid and reliable way? | An objective, standard criteria used for measurement of the condition? | Confounding factors identified? | Strategies to deal with confounding factors stated? | Outcomes measured in a valid and reliable way? | Appropriate statistical analysis used? |
|---|---|---|---|---|---|---|---|---|
Dlugaj et al. [24] | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes |
Guarnieri et al. [26] | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes |
Kim et al. [27] | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes |
Osorio et al. [2] | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes |
Wilson et al. [28] | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes |