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Table 3 Cox regression-based tests for equality of survival curves

From: Equal access, (Un)equal uptake: a longitudinal study of cataract surgery uptake in older people in England

  Wald Chi-Square P-value
Gender 1.59 0.208
Age group 19.84 0.000
Ethnicity 1.57 0.211
Wealth 18.36 0.003
Private insurance 5.70 0.017
IMD 2.12 0.715
Self-reported vision 22.83 0.000
Recommendation 181.22 0.000