frailty models

Example 9.7: New stuff in SAS 9.3– Frailty models

September 27, 2011 | 0 Comments

Shared frailty models are a way of allowing correlated observations into proportional hazards models. Briefly, instead of l_i(t) = l_0(t)e^(x_iB), we allow l_ij(t) = l_0(t)e^(x_ijB + g_i), where observations j are in clusters i, g_i is typically norma...
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