It's important to stress the sort of etymological point

理解其中的词源含义非常重要
because sometimes people confuse

因为有时人们会把
schizophrenia with something-- with split personality

精神分裂和人格分裂相混淆
and they somehow think schizophrenia refers to having multiple personalities.

他们认为精神分裂就是指拥有多重人格
This is incorrect.

这是不正确的
A multiple personality disorder is an entirely different disorder.

多重人格是一种完全不同的精神紊乱
It's a sort of dissociative disorder.

属于解离性障碍
Split personality--people with schizophrenia do not have multiple personalities.

精神分裂患者不存在多重人格
What they have is a problem with relating to reality.

他们的问题是与现实脱离
It's roughly equally split between the genders

患者男女比例差别不大
but it strikes men earlier and it happens between--

男性患病的年龄较女性更小
around these ages and as you could see roughly-- and, as you could see,

可以看出患者主要集中在这些年龄段