Ils étaient incertains quant à la voie à emprunter.
They were not sure of the best way ahead.
Les résultats du référendum irlandais étaient incertains.
The outcome of the then pending Irish referendum was uncertain.
Comme on le comprend, bien 42 % des participants étaient incertains quant aux effets de cette nouvelle technologie, mais d'après l'enquête presque 70 % des participants ont exprimé des opinions optimistes quant à ses effets.
Understandably, as many as 42% of respondents were uncertain about the effects of this new technology, but according to the survey almost 70% of the respondents who expressed an opinion as to its effects were optimistic.