Table 1.

Patient characteristics on 1 January 2019 for the total RA population

Patient characteristics	Total population		Potential users		Active users		Self-management clinic
		n = 1059		n = 761		n = 360		n = 110
Age, years, mean (s.d.)	64 (13)	1059	61 (13)	761	59 (11)	360	57 (11)	110
Female, %	67	705/1059	65	497/761	65	235/360	66	72/110
BMI, kg/m2, mean (s.d.)	27 (5.1)	502	27 (5.1)	370	27 (5.3)	174	26 (4.8)	65
Anti-CCP positive, %	56	418/761	53	300/566	56	138/248	64	59/92
RF positive, %	61	443/723	59	308/526	63	147/233	61	54/88
Smoking status
Current smoker, %	19	61/322	18	33/186	13	20/151	5	3/55
Stopped smoking, %	46	149/322	51	95/186	54	82/151	62	34/55
Never smoked, %	35	112/322	31	58/186	33	49/151	33	18/55
Consumes alcohol, %	62	198/322	70	131/186	70	105/151	76	42/55
Highest education
High, %	12	38/318	15	28/186	18	27/151	31	17/55
Middle, %	25	79/318	31	58/186	30	45/151	27	15/55
Low, %	63	201/318	54	100/186	52	79/151	42	23/55
Health outcome
DAS28, median (IQR)	2.6 (2.0–3.4)	863	2.6 (2.0–3.2)	642	2.5 (1.9–3.1)	339	2.1 (1.7–2.7)	109
HAQ, median (IQR)	0.50 (0.12–1.3)	272	0.38 (0–1.0)	182	0.38 (0–0.94)	169	0.32 (0–0.75)	78
SF36 PCS, median (IQR)	43 (35–51)	166	44 (37–52)	133	44 (37–52)	129	48 (40–53)	63
SF36 MCS, median (IQR)	50 (42–58)	166	50 (42–56)	133	51 (42–56)	129	54 (47–60)	63
Medication use
Biologic users, %	20	214	22	171	24	87	30	33
csDMARD users, %	75	797	75	569	77	277	85	94
No DMARD therapy, %	18	196	19	145	17	61	6	7

Patient characteristics are split into the potential users, the active users, and the patients who participated in the self-management outpatient clinic between November 2017 and November 2019.

csDMARD: conventional synthetic DMARD; DAS28: disease activity score for 28 joints; IQR: interquartile range; SF: short form; PCS: physical component score; MCS: mental component score.