Table 2

2C baseline cohorts
Disease cohort Cohort ID Denominator cohort N = 9676 n Responders cohort n = 5426 n* (%) Non-responders cohort n = 4250 n* (%) Linkage consenters cohort n = 4030 n** (%)
-CVD -OA 0 2535 1165 (45.9) 1370 (54.1) 820 (70.4)
+Hyp -OA 1 1322 720 (54.5) 602 (45.5) 525 (72.9)
+IHD -OA 2 2036 1196 (58.7) 840 (41.3) 915 (76.5)
+HF -OA 3 259 149 (57.5) 110 (42.5) 108 (72.5)
-CVD + OA 4 1317 828 (62.9) 489 (37.1) 617 (74.5)
+Hyp + OA 5 1644 1017 (61.9) 627 (38.1) 773 (76.0)
+IHD + OA 6 490 305 (62.2) 185 (37.8) 237 (77.8)
+HF + OA 7 73 46 (63.0) 27 (37.0) 35 (76.1)

CVD = Cardiovascular disease, OA = Osteoarthritis, Hyp = Hypertension, IHD = Ischaemic heart disease, HF = Heart failure.

Disease categories (defined by study specific Read codes in the 3 years prior to baseline survey.

-CVD -OA = no record of CVD (hypertension, IHD or HF) condition or OA; -CVD + OA = record of OA but not CVD (hypertension, IHD or HF).

+Hyp -OA = record of hypertension without OA; +IHD -OA = record of IHD without OA; +HF -OA = record of HF without OA.

+Hyp + OA = record of hypertension and OA; +IHD + OA = record of IHD and OA; +HF + OA = record of HF and OA.

*percentage of denominator population; **percentage of responder population.

Prior et al.

Prior et al. BMC Health Services Research 2012 12:295   doi:10.1186/1472-6963-12-295

Open Data