Electrohysterogram　(EHG)　is　a　promising　method　for　noninvasive　monitoring　of　uterine　electrical　activity.　The　main　purpose　of　this　study　was　to　characterize　the　multichannel　EHG　signals　to　distinguish　between　term　delivery　and　preterm　birth,　as　well　as　deliveries　within　and　beyond　24　h.　A　total　of　219　pregnant　women　were　grouped　in　two　ways:　(1)　term　delivery　(TD),　threatened　preterm　labor　(TPL)　with　the　outcome　of　preterm　birth　(TPL_PB),　and　TPL　with　the　outcome　of　term　delivery　(TPL_TD);　(2)　EHG　recording　time　to　delivery　(TTD)　＜=　24　h　and　TTD　＞　24　h.　Three　bipolar　EHG　signals　were　analyzed　for　the　30　min　recording.　Six　EHG　features　between　multiple　channels,　including　multivariate　sample　entropy,　mutual　information,　correlation　coefficient,　coherence,　direct　partial　Granger　causality,　and　direct　transfer　entropy,　were　extracted　to　characterize　the　coupling　and　information　flow　between　channels.　Significant　differences　were　found　for　these　six　features　between　TPL　and　TD,　and　between　TTD　＜=　24　h　and　TTD　＞　24　h.　No　significant　difference　was　found　between　TPL_PB　and　TPL_TD.　The　results　indicated　that　EHG　signals　of　TD　were　more　regular　and　synchronized　than　TPL,　and　stronger　coupling　between　multichannel　EHG　signals　was　exhibited　as　delivery　approaches.　In　addition,　EHG　signals　propagate　downward　for　the　majority　of　pregnant　women　regardless　of　different　labors.　In　conclusion,　the　coupling　and　propagation　features　extracted　from　multichannel　EHG　signals　could　be　used　to　differentiate　term　delivery　and　preterm　birth　and　may　predict　delivery　within　and　beyond　24　h.