I know that exp(coef) is the Hazard Ratio, but in a certain output posted
down here also a exp(-coef) is present.
exp(coef) exp(-coef) lower .95 upper .95
ns(CD4, 4)1 0.29058 3.4413 0.144075 0.5861
ns(CD4, 4)2 0.09870 10.1316 0.029075 0.3351
ns(CD4, 4)3 0.03475 28.7806 0.007375 0.1637
ns(CD4, 4)4 0.10211 9.7933 0.019234 0.5421
drug[T.ddI] 1.31900 0.7582 0.989748 1.7578
AZT[T.failure] 1.46116 0.6844 1.087839 1.9626
What does exp(-coef) mean?
Thank you in advance!
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