Early experience with an opt-in research register - Scottish Health Research Register (SHARE): a multi-method evaluation of participant recruitment performance

Table 1 Distribution of characteristics of the SHARE registrants

Characteristics	Number of Registrants	Percentage
Age
11–15	865	0.3
16–19	1654	0.6
20–29	20,130	7.1
30–39	30,492	10.7
40–49	34,678	12.2
50–59	52,509	18.5
60–69	58,775	20.7
70–79	55,791	19.7
80–89	25,457	9.0
90+	3440	1.2
Sex
Female	170,459	60.1
Male	113,332	39.9
Disease status
Any malignancy	20,124	7.1
Cerebrovascular disease	8734	3.1
Chronic pulmonary disease	22,454	7.9
Congestive heart failure	5329	1.9
Dementia	881	0.3
Diabetes with chronic complication	1571	0.6
Diabetes without chronic complication	18,476	6.5
Hemiplegia or paraplegia	1481	0.5
Metastatic solid tumour	4329	1.5
Mild liver disease	4575	1.6
Moderate or severe liver disease	1255	0.4
Myocardial infarction	9252	3.3
Peptic ulcer disease	4152	1.5
Peripheral vascular disease	5495	1.9
Renal disease	7449	2.6
Rheumatic disease	4862	1.7
Medication type		0.0
Analgesics	86,839	30.6
Antidiabetic Drugs	27,042	9.5
Antidepressant	72,201	25.4
Antihypertensives	89,418	31.5
Cardiovascular System	144,363	50.9
Central Nervous System	130,106	45.8
Endocrine System	80,870	28.5
Gastro-Intestinal System	170,990	60.3
Infections	92,156	32.5
Inhaled Steroids	29,588	10.4
Lipid Modifying Drugs	67,433	23.8
Muscoskeletal And Joint Disease	67,483	23.8
NSAIDs including Cox-2	35,408	12.5
Respiratory System	65,127	22.9
Skin	71,544	25.2
Topical Steroids	43,186	15.2

ISSN: 1471-2288