表 1. 2组病例的基本情况.
Tab 1 Characteristics of two groups
| 组别 | n | 男 | 女 | 年龄/岁 |
| 试验组 | 37 | 18 | 19 | 8.81±0.78 |
| 对照组 | 36 | 17 | 19 | 8.44±0.81 |
| 合计 | 73 | 35 | 38 | 8.63±0.78 |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.