Table 1.

Summary statistics of quality of care indicators by disease area

Disease area	Number of QoC indicators	Mean	SD	ELSA wave	Sample
All	35	0.633	0.482	2	23,681
Hypertension	3	0.772	0.420	2–4	10,514
High cholesterol	2	0.636	0.481	2	3311
IHD	3	0.729	0.445	2	1841
Stroke	1	0.417	0.494	2–4	263
Diabetes	7	0.587	0.492	2–4	10,892
Osteoarthritis	5	0.350	0.477	2–4	7430
Osteoporosis	2	0.669	0.471	2	924
Prevention of falls	2	0.303	0.459	2 and 4	1918
Pain	1	0.771	0.421	2 and 4	462
Incontinence	4	0.519	0.500	2	2089
Vision	1	0.571	0.495	2	591
Hearing	2	0.790	0.407	2	2318
Depression	2	0.637	0.481	2 & 4	786

ELSA waves 2, 3 and 4 were in 2004–2005, 2006–2007 and 2008-2009, respectively. All QoC indicators are coded so that 1 = indicator is met, 0 otherwise

QoC quality of care, IHD ischaemic heart disease