英语语法分析

There was a significant difference in paranoic ideation between the age group of 40-49 years and the normal group.

偏执因子在40-49岁组与正常对照有非常显著的差异。

There was significant difference in paranoic ideation between the age group of 40—49 years and the normal group.

偏执因子在40— 49岁组与正常对照有非常显著的差异。