Table 2.

Dyad regression coefficients for type 2 diabetes risk factors (adjusted for age difference and sex)

(n)	Spouses (91)	Parents–offspring (283)	Grandparents–grandchildren (97)	Siblings (148)
HbA1c (%)†	0.18 (−0.09 to 0.45)	0.16* (0.02 to 0.29)	0.07 (−0.8 to 0.22)	0.28* (0.13 to 0.44)
Systolic blood pressure (mm Hg)‡	0.27* (0.01 to 0.53)	0.10* (0.04 to 0.16)	0.08 (−0.02 to 0.19)	0.18* (0.01 to 0.36)
Diastolic blood pressure (mm Hg)‡	0.10 (−0.13 to 0.34)	0.02 (−0.07 to 0.10)	0.14* (0.02 to 0.27)	0.16* (0.01 to 0.32)
Height (cm or SD)§	0.07 (−0.13 to 0.26)	0.35* (0.19 to 0.52)	0.10 (−0.17 to 0.38)	0.26* (0.09 to 0.42)
BMI (kg/m2)	0.19 (−0.04 to 0.42)	0.02 (−0.07 to 0.12)	−0.01 (−0.14 to 0.13)	0.11 (−0.06 to 0.29)
Fitness status (mLO2/min/kg)¶	0.42* (0.25 to 0.59)	0.46* (0.31 to 0.60)	−0.08 (−0.37 to 0.20)	0.38* (0.22 to 0.53)
Daily sitting time (minutes)	0.09 (−0.05 to 0.24)	0.15* (0.04 to 0.27)	0.10 (−0.07 to 0.27)	0.09 (−0.08 to 0.27)

Values are presented as regression coefficients (95% CI). Coefficients express the difference in each risk factor in dyad member 2 per unit difference in that same risk factor in dyad member 1.

*p<0.05.

†Individuals with diagnosed diabetes were excluded.

‡Individuals with diagnosed hypertension were excluded.

§For spouses, height (cm) is used while for parents–offspring, grandparents–grandchildren and siblings, height for age is used and not adjusted for age difference or sex.

¶In 15% of the dyads, one member did not complete the step test.

BMI, body mass index; HbA1c, haemoglobin A1c.