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Factors associated with poor outcomes after plasma exchange
| Better than 20/200 (n=316) | 20/200 or worse (n=81) | P-value | |
|---|---|---|---|
| Female | 72% | 63% | 0.12 |
| White | 68% | 69% | 0.84 |
| Median Age (years) | 35.0 (IQR 27–51) | 46.1 (IQR 31–46.1) | 0.002 |
| Median visual acuity at time of plasma exchange | Count fingers (IQR, 20/400-HM) | LP (IQR, HM-LP) | <0.001 |
| Median weeks to plasma exchange | 2.4 (IQR, 1.4–3.8) | 3.3 (IQR, 2.3–3.5) | <0.001 |
Abbreviations: hand motion (HM), light perception (LP), interquartile (IQR)
