Table 1.

Mean ESR and other baseline characteristics of patients with rheumatoid arthritis in 84 cohorts studied for mortality outcomes⁶. All 23 reports with baseline ESR are included, listed in chronological order based on first year of recruitment.

Study	Period of Recruitment	Inception Cohort? No/Yes	No. Patients	Age, mean yrs	Disease Duration, mean yrs	RF (% positive)	ESR, mean mm/h
Vandenbroucke 1984⁷	1954–1957	N	209	53.5	8	74	47
Wolfe 1994 (includes Wolfe, 1988 cohort)⁸	1955–1981	N	3501	53.3	9	88	45
Maradit Kremers 2005⁹	1955–1995	N	603	58	—	59	47
Jacoby, 1973¹⁰	1957–1963	Y	100	51	3 mo	88	47
Gordon, 1973¹¹	1965–1966	N	127	55	11.5	93	66
Book 2005¹²	1978–1978	N	152	61	12	85	43
Krause 2000¹³	1980–1987	N	256	64.3	8.5	88	57
Wolfe 1988¹⁴	1981–1985	N	400	54.8	9.5	80	37
Chehata 2001¹⁵	1981–1985	N	309	53	2.5^*	—	45
Choi 2002¹⁶	1981–1999	N	1240	—	—	83	34
Wolfe 2003¹⁷	1981–1999	N	1387	55.5	7.1	85	41
Kremer 1997¹⁸	1982–1983	N	29	60.6	31.4	—	36
Sokka 1999¹⁹	1983–1989	Y	135	50.5	6.5 mo	71	38
Maiden 1999²⁰	1984–1985	N	200	57^*	7^*	—	64^*
Callahan 1997²¹	1984–1986	N	210	56.6	9.7	—	35
Lindqvist and Eberhardt 1999²²	1985–1989	Y	183	51	11 mo	75	29^*
Kroot 2000²³	1985–1997	Y	622	53.3	—	82	41
Peltomaa 2002²⁴	1986–1993	Y	150	51.8	6.8 mo	65	34^*
Soderlin 1998²⁵	1989–1991	N	103	59.5	18.4	88	27
Mattey 2007²⁶	1991–1991	Y	401	59.4	6 mo	73	38^*
Nikolaisen 2008²⁷	1993–2000	Y	111	61^*	4.5 mo^*	78	41^*
Gonzalez-Gay 2007²⁸	1996–1996	N	182	59.7	10.5	78	28
Escalante 2005²⁹	1996–2000	N	779	55.6	11.1	79	42

↵* Median.