Table 1. Clinical characteristics of participants.

	Young Twins	Elderly Twins	Botnia T2D Cases	Botnia Controls
n (male/female)	110 (60/50)	86 (38/48)	751 (399/352)	709 (344/365)
n (MZ/DZ)	110 (66/44)	86 (42/44)
Age (years)	28.0±1.9	62.4±2.0*	54.5±9.4	53.5±11.5
BMI (kg/m2)	24.1±3.1	26.1±4.4*	28.9±4.8	25.9±3.8*
Glucose uptake (mg·kg LBM−1·min−1)	11.7±3.2	9.9±3.3*
Fasting plasma glucose (mmol/l)			9.1±3.2	5.3±0.5*

Data are expressed as means±SD. DZ, dizygotic; MZ, monozygotic; LBM, lean body mass.

^* p<0.05.