Table 1.

Comparison of attenders and non-attenders, continuous variables.

	Attenders		Non-attenders
	n	Mean	n	Mean	Mean difference	95% CI	P-value
Last recorded systolic BP, mmHg	101	137.6	67	133.2	4.4	−0.7 to 9.4	0.093
Last recorded diastolic BP, mmHg	101	79.2	67	72.5	6.7	3.7 to 9.7	<0.001
BMI	100	29.9	67	29.4	0.5	−1.4 to 2.4	0.60
HbA1c	56	7.3	67	7.3	0.0	−0.4 to 0.4	0.95
Total cholesterol	92	4.2	67	4.0	0.2	−0.1 to 0.4	0.31
Age, years	93	66.0	66	66.4	−0.4	−4.7 to 3.8	0.84

BP = blood pressure. BMI = body mass index. HbA1c = glycosylated haemoglobin.