Summary of the proportion of survey respondents in each age bracket who indicated routinely asking their patients about smoking behaviors.

* indicates a significant difference (p < 0.05) compared with respondents in all other age brackets.
Summary of the proportion of survey respondents in each age bracket who indicated routinely asking their patients about smoking behaviors.

* 表示与所有其他年龄组的受访者相比存在显著差异（p < 0.05）。
各年龄组受访者常规询问患者吸烟行为的比例汇总。