Potential Identifying Risk Factor: increased BMI, urinalysis, current smoking status, diabetes, rheumatoid arthritis, HIV, renal, liver, CHF, or coagulopathy.

Identifying Factor

No Identifiying Factor

P-Value

Percent of Patients With Elevation of CRP

Negative (lab of 0.3 or less)

376 (46.7%)

26 (3.2%)

0.1093

Positive (lab greater than 0.3)

388 (48.1%)

16 (2.0%)

Percent of Patients With Elevation of ESR

Negative (lab of 30 or less)

633 (78.5%)

34 (4.2%)

0.7509

Positive (lab greater than 30)

131 (16.3%)

8 (1.0%)

Percent of Patients With Elevation of CRP or ESR

Positive ESR or Postive CRP

414 (51.4%)

19 (2.4%)

0.2574

Both ESR and CRP are Negative

350 (43.4%)

23 (2.9%)

Percent of Patients With Elevation of CRP and ESR

Positive ESR and Positive CRP

105 (13.0%)

5 (0.6%)

0.7354

Either ESR or CRP are Negative

659 (81.8%)

37 (4.6%)

Percent of Patients With Elevation of CRP but ESR is Negative

Positive CRP and Negative ESR

283 (35.1%)

11 (1.4%)

0.1549

CRP is Negative, and ESR can be positive/negative

481 (59.7%)

31 (3.9%)

Percent of Patients With Elevation of ESR but CRP is Negative

Positive ESR and Negative CRP

26 (3.2%)

3 (0.4%)

0.2052

ESR is Negative, and CRP can be positive/negative

738 (91.6%)

39 (4.8%)

Unmodifiable Identifying Risk Factors: diabetes, rheumatoid arthritis, HIV, renal, liver, CHF, or coagulopathy

Identifying Factor

No Identifiying Factor

P-Value

Percent of Patients With Elevation of CRP

Negative (lab of 0.3 or less)

178 (22.1%)

224 (27.8%)

0.4755

Positive (lab greater than 0.3)

189 (23.5%)

215 (26.7%)

Percent of Patients With Elevation of ESR

Negative (lab of 30 or less)

277 (34.4%)

390 (48.4%)

< 0.0001

Positive (lab greater than 30)

90 (11.2%)

49 (6.1%)

Percent of Patients With Elevation of CRP or ESR

Positive ESR or Positive CRP

207 (25.7%)

226 (28.0%)

0.1628

Both ESR and CRP are Negative

160 (19.9%)

213 (26.4%)

Percent of Patients With Elevation of CRP and ESR

Positive ESR and Positive CRP

72 (8.9%)

38 (4.7%)

< 0.0001

Either ESR or CRP are Negative

295 (36.6%)

401 (49.8%)

Percent of Patients With Elevation of CRP but ESR is Negative

Positive CRP and Negative ESR

117 (14.5%)

177 (22.0%)

0.0132

CRP is Negative, and ESR can be positive/negative

250 (31.0%)

262 (32.5%)

Percent of Patients With Elevation of ESR but CRP is Negative

Positive ESR and Negative CRP

18 (2.2%)

11 (1.4%)

0.0686

ESR is Negative, and CRP can be positive/negative

349 (43.3%)

428 (53.1%)

Modifiable Identifying Risk Factors: increased BMI, urinalysis, or current smoking status,

Identifying Factor

No Identifiying Factor

P-Value

Percent of Patients With Elevation of CRP

Negative (lab of 0.3 or less)

359 (44.5%)

43 (5.3%)

0.0039

Positive (lab greater than 0.3)

383 (47.5%)

21 (2.6%)

Percent of Patients With Elevation of ESR

Negative (lab of 30 or less)

616 (76.4%)

51 (6.3%)

0.4985

Positive (lab greater than 30)

126 (15.6%)

13 (1.6%)

Percent of Patients With Elevation of CRP or ESR

Positive ESR or Positive CRP

407 (50.5%)

26 (3.2%)

0.1022

Both ESR and CRP are Negative

335 (41.6%)

38 (4.7%)

Percent of Patients With Elevation of CRP and ESR

Positive ESR and Positive CRP

102 (12.7%)

8 (1.0%)

0.7804

Either ESR or CRP are Negative

640 (79.4%)

56 (6.9%)

Percent of Patients With Elevation of CRP but ESR is Negative

Positive CRP and Negative ESR

281 (34.9%)

13 (1.6%)

0.0051

CRP is Negative, and ESR can be positive/negative

461 (57.2%)

51 (6.3%)

Percent of Patients With Elevation of ESR but CRP is Negative

Positive ESR and Negative CRP

24 (3.0%)

5 (0.6%)

0.0592

ESR is Negative, and CRP can be positive/negative

718 (89.1%)

59 (7.3%)