Table 1 Main characteristics of studies included in this meta-analysis
From: Association of anemia with sensorineural hearing loss: a systematic review and meta-analysis
First Author, Publication year | Setting | Population | Study design | Sample size | Quality score | IDAa Measurea | Hearing loss Measure |
|---|---|---|---|---|---|---|---|
Schieffer 2017 [15] | USA | Children | Cohort | 20,113 | 9 | Serum ferritin Hemoglobin | SNHLc |
Schieffer 2017 [17] | USA | Adults | Cohort | 305,339 | 9 | Serum ferritin Hemoglobin | SNHL |
Chung 2014 [18] | Taiwan | Adults | CCb | 16,016 | 8 | Serum ferritin Hemoglobin | SNHL |
Nash 2011 [16] | USA | Adults | Cohort | 2612 | 9 | Hematocrit | SNHL |