TABLE 2 Brain Metabolite Ratios in Plane above ventricle and Annual Decrease Metabolite Rati 1995-1996Rato* 1999-2000 Ratio Annual Decrease in ratio? Cho/Cr Women 1.00±0.11 0.84±0.17 0.038(0.031,0.046) Adjusted 0.98±0.10 0.89±0.16 Men 1.00±0.13 089±0.18 0027(0.018,0.035) Adjusted 1.00±0.12 0.91±0.15 NAA/C omen 1.57±0.17 146±0.29 0027(0.013,0.041) Adjusted 1.56±0.16 1.50±0.27 M 1.54±0.20 1.42±0.32 0.029(0.014,0.045) Adjusted 1.52±0.16 1.47±0.23 Cho/NAA Women 0.64±0.09 0.59±0.14 0.012(0.006,0.018) Adjusted 0.64±0.08 0.58±0.13 Men 0.65±0.10 0.65±0.18 0.000(-0.009,0.008) Adjusted 0.66±0.09 0.63±0.10 Note -Data are for 105 women(first examination, 1 37 women) and 96 men( first examination, 1 34 men), adjusted as described in Results Data are the mean±SD f Data in parentheses are 95% CI t Men differ from women p<. 02 8 Men differ from women p<. 05 I Men differ from women, p<. 01 890 Radiology March 2003
890 Radiology March 2003
Cell,vol.112,257-269, January24,2003 Patients Siblings Controls Genotype group Val/val Valmet Met/met Val/val Val/met Met/met Val/val Val/met Met/met (number of subjects)(138)(56) (206(85) (14 91) (36 (6) Age 36.8 35.7 32.5 37.2 35.8 34.1 39.3 (92)(86)(10.2)(8.8)(89)(8.8) (9.7) (8.9) (84) Gender (MF 109/2945/11 72 91/11531/5477 43/482261042 Education years 13.8 13.9 13.9 15.82151°153 16.2 16.7 177 (22)(26)(28) (2.5)(24) (2.6) (2.4)(32) (4.3) Reading 1013 10091051106.51047104.5106310621047 Comprehension (123)(12)(100(112)1)(12)(10.2)(02)(26) 929 IQ 91.1 92.3 1062106 107,610911057 (126)(13.1)(13.5)(13.1)(31)(13.1)(107)(02)(126) Semantic 33.5 33.9 39.2 1.7 11480 44.3 Me (118)(115)(141)(11)(13)(10.5) )(9.8)(10.5) Working 37.0 37.4 42.0 44.0 43.4 47.3 46.1 40.1 Memory (120)(12:)(149)(9:)(06)(.3)(9.5)(03)(8.1) Not so good
Cell, Vol. 112, 257–269, January 24, 2003 Not so good
图 照片、其它纪实图象等 记录性 线形图、条形图、散点图等 定量 示意图、流程图 解释性 地图
图 照片、其它纪实图象等 记录性 地图 线形图、条形图、散点图等 定量 示意图、流程图 解释性
图的种类 照片:真实、直观、信息量大 要对比强烈、重点突出 线形图:二个变量之间的定量关系(趋势、 连续变化) 条形图:自变量为分类数据 饼形图:比例
二个变量之间的定量关系（趋势、 连续变化） 条形图： 饼形图： 比例 真实、直观、信息量大。 要对比强烈、重点突出 线形图： 照 片： 自变量为分类数据 图的种类
照片:真实、直观、信息量大 0 缺乏对比、重点不突出
缺乏对比、重点不突出 照片：真实、直观、信息量大