How would I recreate this format with equation/align/pmatrix?
\begin{equation}
\begin{align}
P(t&=11 \\ t&=13 |sex&=1 \\ education &=1 )
\end{align} = \begin{pmatrix}
q_{11t} & q_{12t} & 0 & 0 & q_{15t} \\
q_{21t} & q_{22t} & q_{23t} & 0 & q_{25t} \\
0 & q_{32t} & q_{33t} & q_{34t} & q_{35t} \\
0 & 0 & q_{43t} & q_{44t} & q_{45t} \\
0 & 0 & 0 & 0 & 0
\end{pmatrix}
\label{fig:transition-intensity-matrix}
\end{equation}
The content is not important, I'm just trying to get the layout! I have got this far, but I am also recieving the error: "Package amsmath Error: Erroneous nesting of equation structures;(amsmath) trying to recover with `aligned'. \end{align}"
Any advice? Thank you!