Protocol for ADDITION-PRO: a longitudinal cohort study of the cardiovascular experience of individuals at high risk for diabetes recruited from Danish primary care

Table 1 Difference in characteristics at screening between attenders and non-attenders to the ADDITION-PRO study

Characteristics at screening		Attenders n = 2,082	Non-attenders n = 2,106	p-value¹
Men (%)		53.4	42.8	< 0.001
Median age (years)		58.5	59.3	0.551
Gestational diabetes (% of women)		2.2	1.4	0.185
Family history of diabetes (%)	No relatives	67.7	73.8	< 0.001
	1 relative	24.3	19.6
	2 relatives	6.1	5.0
Hypertension² (%)		36.7	36.5	0.838
Weight (%)	Normal weight	36.0	40.2	0.006
	Overweight	45.0	40.3
	Obese	17.8	18.1
Physically inactive³ (%)		78.1	78.1	0.856

¹ p-value from t-tests or chi-squared test for the difference between attenders and non-attenders.
² Hypertension defined as “has a doctor ever told you that you have high blood pressure” in the risk score questionnaire [12].
³ Classified as inactive from four questions pertaining to leisure time physical activity in the risk score questionnaire [14].

ISSN: 1471-2458