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Age and cohort size of each study examined.
| Author | Steroid group number | Average age steroid group | Non-steroid group number | Average age non-steroid group | Overall average age of study | Total Patients |
|---|---|---|---|---|---|---|
| Christensen14 | 38 | 65.8 | 37 | 65.2 | 65.5 | 76 |
| Sean13 | 50 | 67.9 | 50 | 65.4 | 66.65 | 100 |
| Ikeuchi15 | 20 | 77 | 20 | 76 | 76.5 | 40 |
| Chia17 | 84 | 67.855 | 41 | 65.09 | 66.4725 | 125 |
| Yue16 | 36 | 70.2 | 36 | 69.3 | 69.75 | 72 |
| Total: | Average: | Total: | Average: | Average: | Total: | |
| 228 | 69.751 | 184 | 68.198 | 68.9745 | 413 |
