Nearly half had full-time jobs before going to prison, statistics show.
How about:
Fewer than half had full-time jobs; or
More than half did not have full time jobs; or
More than half had only part time jobs or no jobs at all; or
More than half were unable to get full time work with the existing pig's ear manipulated market conditions where women are favoured and men routinely penalised with specific anti-male employment laws; or
etc, etc.........