Above an HDI of 0.9 or so, it turned up, producing what is known in the jargon as a "J-shaped" curve (even though it is the mirror image of a letter j).
HDI高于0.9，线形图呈现行话所谓的“J形曲线”(实际显现的是镜像的字母J)。
2
In contrast, glycated hemoglobin and death from any cause were found to have a J-shaped association curve.