Supplementary Material for: Similarities and differences in diurnal salivary adrenal hormones in monozygotic twins with discordant birthweight

Introduction
DHEAS is increased in formerly small-for-gestational-age singletons and in smaller twins compared to their normal-weight co-twin. Less is known concerning other adrenal hormones. We compared diurnal salivary profiles in monozygotic twins with intra-twin birthweight(bw)-differences to analyse the long-term impact of bw and persistent intra-twin auxological differences on various adrenal hormones.

Methods
46 monozygotic pre-pubertal twin-pairs with bw-difference of

引言
DHEAS在曾为宫内生长迟缓的单胎儿及体重较轻的双胞胎中升高，与体重正常的同卵双胞胎相比。关于其他肾上腺激素的了解相对较少。本研究对比了同卵双胞胎的昼夜唾液激素谱，分析双胞胎出生体重差异对肾上腺激素的长期影响，并探讨了持续存在的双胞胎生长学差异对肾上腺激素的影响。

方法
纳入了46对出生体重存在差异的同卵双胞胎，年龄在青春期前，以分析出生体重和持续存在的双胞胎生长学差异对肾上腺激素的长期影响。