哪項因素對跨年齡層的健康狀況影響最顯著？

社會經濟地位（Socioeconomic status, SES）是決定個人健康結果最關鍵的「健康社會決定因素」（Social Determinants of Health）。它直接影響個人的教育程度、居住環境、營養攝取、壓力水平及對醫療服務的獲取能力。研究證實，SES 較高者通常擁有較好的健康識能與資源，能有效預防疾病並在患病時獲得更好的照護。

Socioeconomic status (SES) is the most critical "social determinant of health" influencing individual health outcomes. It directly affects educational attainment, living environment, nutritional intake, stress levels, and access to healthcare services. Research has shown that individuals with higher SES typically have better health literacy and resources, can prevent disease more effectively, and receive better care when ill.