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. 2020 May 1;6(1):e001191. doi: 10.1136/rmdopen-2020-001191

Table 4.

Impact of positive status for High-14-3-3η, rheumatoid factor (RF), anticyclic peptide antibodies (ACPA) and high C-reactive protein (CRP) at each visit on prediction of rapid erosive progression (REP) according to low (<5) (table 4A) or high Sharp Erosion Score (≥5) (table 4B) at a given visit

Visits REP (ΔErosions ≥5 between 2 consecutive visits)
Total n (%) RR (95% CI) P value
A
Non-erosive status at the visit (Sharp Erosion Score <5)
Individual variables
 14-3-3η 437 37 (8.5) 2.78 (1.75–4.4) <0.0001
 ACPA positive 457 41 (9) 3.64 (2.19–6.03) <0.0001
 RF positive 461 40 (8.7) 3.19 (1.98–5.14) <0.0001
 CRP 485 46 (9.5) 4.31 (2.65–7.01) <0.0001
RF, ACPA (n=1388)
 Both negative 816 16 (2) 1
 One positive 264 17 (6.4) 3.29 (1.69–6.39) 0.0005
 Both positive 308 31 (10.1) 5.1 (2.81–9.26) <0.0001
RF, CRP (n=1505)
 Both negative 725 12 (1.7) 1
 One positive 615 26 (4.2) 2.52 (1.3–4.87) 0.0062
 Both positive 165 30 (18.2) 10.62 (5.56–20.3) <0.0001
ACPA, CRP (n=1392)
 Both negative 636 8 (1.3) 1
 One positive 601 28 (4.7) 3.71 (1.74–7.93) 0.0007
 Both positive 155 28 (18.1) 14.06 (6.62–29.85) <0.0001
14-3-3η, RF (n=1443)
 Both negative 796 21 (2.6) 1
 One positive 416 15 (3.6) 1.36 (0.72–2.56) 0.347
 Both positive 231 31 (13.4) 4.99 (2.9–8.6) <0.0001
14-3-3η, ACPA (n=1335)
 Both negative 688 13 (1.9) 1
 One positive 454 25 (5.5) 2.88 (1.51–5.51) 0.0014
 Both positive 193 25 (13) 6.75 (3.51–12.96) <0.0001
14-3-3η, CRP (n=1446)
 Both negative 682 15 (2.2) 1
 One positive 624 22 (3.5) 1.58 (0.84–2.98) 0.1567
 Both positive 140 30 (21.4) 9.41 (5.25–16.86) <0.0001
14-3-3η, RF, CRP (n=1443)
 All negative 540 12 (2.2) 1
 One positive 544 12 (2.2) 0.99 (0.45–2.16) 0.9814
 Two positive 275 19 (6.9) 3.07 (1.53–6.17) 0.0016
 All positive 84 24 (28.6) 12.47 (6.47–24.03) <0.0001
14-3-3η, ACPA, CRP (n=1334)
 All negative 456 6 (1.3) 1
 One positive 547 18 (3.3) 2.48 (1.01–6.06) 0.0464
 Two positive 260 18 (6.9) 5.21 (2.13–12.75) 0.0003
 All positive 71 21 (29.6) 21.85 (9.3–51.34) <0.0001
14-3-3η, RF, ACPA (n=1331)
 All negative 627 13 (2.1) 1
 One positive 317 9 (2.8) 1.37 (0.6–3.11) 0.4504
 Two positive 233 19 (8.2) 3.91 (1.96–7.79) 0.0001
 All positive 154 22 (14.3) 6.81 (3.49–13.3) <0.0001
RF, ACPA, CRP (n=1388)
 All negative 552 6 (1.1) 1
 One positive 457 18 (3.9) 3.61 (1.48–8.79) 0.0047
 Two positive 260 16 (6.2) 5.7 (2.29–14.17) 0.0002
 All positive 119 24 (20.2) 18.11 (7.7–42.61) <0.0001
14-3-3η, RF, ACPA, CRP (n=1331)
 All negative 411 6 (1.5) 1
 One positive 450 13 (2.9) 1.96 (0.77–5.02) 0.158
 Two positive 234 8 (3.4) 2.34 (0.85–6.5) 0.1015
 Three positive 176 18 (10.2) 6.95 (2.83–17.03) <0.0001
 All positive 60 18 (30) 19.99 (8.39–47.64) <0.0001
B
Erosive status at the visit (Sharp Erosion Score ≥5)
Individual variables
 14-3-3η 258 52 (20.2) 1.08 (0.75–1.55) 0.6827
 ACPA positive 270 62 (22.3) 1.6 (1.06–2.42) 0.0245
 RF positive 301 75 (24.9) 1.93 (1.31–2.84) 0.0009
 CRP 236 62 (26.3) 1.67 (1.19–2.34) 0.0029
RF, ACPA (n=550)
 Both negative 243 29 (11.9) 1
 One positive 89 18 (20.2) 1.48 (0.79–2.74) 0.2192
 Both positive 218 54 (24.8) 2.09 (1.3–3.35) 0.0022
RF, CRP (n=650)
 Both negative 232 20 (8.6) 1
 One positive 302 59 (19.5) 2 (1.25–3.2) 0.004
 Both positive 116 39 (33.6) 3.17 (1.87–5.35) <0.0001
ACPA, CRP (n=553)
 Both negative 186 20 (10.8) 1
 One positive 263 46 (17.5) 1.58 (1.05–2.37) 0.0299
 Both positive 104 35 (33.7) 2.58 (1.57–4.26) 0.0002
14-3-3η, RF (n=640)
 Both negative 274 40 (14.6) 1
 One positive 177 29 (16.4) 1.32 (0.85–2.06) 0.2145
 Both positive 189 49 (25.9) 1.65 (1.04–2.64) 0.0344
14-3-3η, ACPA (n=546)
 Both negative 215 31 (14.4) 1
 One positive 173 34 (19.7) 1.26 (0.84–1.88) 0.2667
 Both positive 158 36 (22.8) 1.45 (0.91–2.33) 0.1204
14-3-3η, CRP (n=644)
 Both negative 253 33 (13) 1
 One positive 290 56 (19.3) 1.28 (0.86–1.89) 0.2222
 Both positive 101 29 (28.7) 1.85 (1.19–2.89) 0.0063
14-3-3η, RF, CRP (n=640)
 All negative 181 19 (10.5) 1
 One positive 208 36 (17.3) 1.64 (0.95–2.84) 0.0784
 Two positive 174 36 (20.7) 1.83 (1.05–3.19) 0.0316
 All positive 77 27 (35.1) 2.86 (1.58–5.19) 0.0005
14-3-3η, ACPA, CRP (n=546)
 All negative 137 15 (10.9) 1
 One positive 198 35 (17.7) 1.45 (0.95–2.23) 0.0875
 Two positive 141 28 (19.9) 1.69 (0.99–2.87) 0.0535
 All positive 70 23 (32.9) 2.42 (1.4–4.21) 0.0017
14-3-3η, RF, ACPA (n=543)
 All negative 195 27 (13.8) 1
 One positive 94 13 (13.8) 1.02 (0.55–1.91) 0.9491
 Two positive 114 26 (22.8) 1.69 (0.97–2.92) 0.0625
 All positive 140 35 (25) 1.78 (1.05–3.03) 0.0336
RF, ACPA, CRP (n=550)
 All negative 161 13 (8.1) 1
 One positive 140 28 (20) 1.94 (1.18–3.19) 0.0091
 Two positive 162 28 (17.3) 2.16 (1.25–3.72) 0.0055
 All positive 87 32 (36.8) 3.65 (2.1–6.37) <0.0001
14-3-3η, RF, ACPA, CRP (n=543)
 All negative 126 12 (9.5) 1
 One positive 133 24 (18) 1.63 (0.94–2.84) 0.0847
 Two positive 105 17 (16.2) 1.71 (0.93–3.14) 0.0841
 Three positive 117 26 (22.2) 2.22 (1.2–4.1) 0.0111
 All positive 62 22 (35.5) 3.07 (1.64–5.75) 0.0005