Analyzing factors associated with time to age at first marriage among women in Ethiopia: log logistic-gamma shared frailty model

Table 1 Functional forms for f(t),S(t), h(t) & H(t) in log-logistic distribution [17,18,19]

Baseline distribution	f(t)	S(t)	h(t)	H(t)	Parameter space
Log-logistic	(λγt^γ−1)/(1 + λt^γ)²	1/(1 + λt^γ)	(λγt^γ−1)/(1 + λt^γ)	Ln[1 + (t/λ)^γ]	λϵR, γ > 0

f(t) = probability density at a time t, S(t) = Survival at a time t, h(t) = hazard at a time t, H(t) = cumulative hazard at a time t

ISSN: 1472-6874