Table 2 C-reactive protein (CRP) and procalcitonin (PCT) values in the acute and convalescent phases of acute Q fever, scrub typhus, and murine typhus
From: Serum C-reactive protein and procalcitonin values in acute Q fever, scrub typhus, and murine typhus
|  | Acute Q fever (n = 115) | Scrub typhus (n = 55) | Murine typhus (n = 19) | All (n = 189) | p | |
|---|---|---|---|---|---|---|
CRP (mg/L) | ||||||
 Acute phase | Mean ± SD | 80.6 ± 60.9 | 74.2 ± 66.8 | 75.0 ± 74.2 | 78.2 ± 63.7 | 0.824 |
> 25 | 78.5% (84/107) | 74.5% (38/51) | 72.2% (13/18) | 76.7% (135/176) | 0.766 | |
> 50 | 68.2% (73/107) | 58.8% (30/51) | 50.0% (9/18) | 63.6% (112/176) | 0.231 | |
> 75 | 45.8% (49/107) | 37.3% (19/51) | 38.9% (7/18) | 42.6% (75/176) | 0.564 | |
> 100 | 33.6% (36/107) | 25.5% (13/51) | 27.8% (5/18) | 30.7% (54/176) | 0.560 | |
> 150 | 11.2% (12/107) | 9.8% (5/51) | 11.1% (2/18) | 10.8% (19/176) | 1.000 | |
> 200 | 3.7% (4/107) | 3.9% (2/51) | 5.6% (1/18) | 4.0% (7/176) | 0.853 | |
 Convalescent phasea | Mean ± SD | 8.9 ± 25.7 | 7.3 ± 19.2 | 4.8 ± 10.6 | 8.0 ± 22.4 | 0.827 |
> 25 | 4.8% (3/62) | 11.1% (4/36) | 8.3% (1/12) | 7.3% (8/110) | 0.476 | |
> 50 | 4.8% (3/62) | 8.3% (3/36) | 0% (0/12) | 5.5% (6/110) | 0.702 | |
> 75 | 3.2% (2/62) | 2.8% (1/36) | 0% (0/12) | 2.7% (3/110) | 1.000 | |
> 100 | 1.6% (1/62) | 0% (0/36) | 0% (0/12) | 0.9% (1/110) | 1.000 | |
PCT (ng/mL) | ||||||
 Acute phase | Mean ± SD | 1.09 ± 1.40 | 0.99 ± 1.46 | 0.97 ± 1.22 | 1.05 ± 1.40 | 0.904 |
> 0.25 | 75.3% (70/93) | 63.3% (31/49) | 61.5% (8/13) | 70.3% (109/155) | 0.254 | |
> 0.5 | 54.8% (51/93) | 40.8% (20/49) | 46.2% (6/13) | 49.7% (77/155) | 0.273 | |
> 1.0 | 31.2% (29/93) | 24.5% (12/49) | 38.5% (5/13) | 29.7% (46/155) | 0.545 | |
> 1.5 | 21.5% (20/93) | 22.4% (11/49) | 15.4% (2/13) | 21.3% (33/155) | 0.955 | |
> 2.0 | 14.0% (13/93) | 16.3% (8/49) | 7.7% (1/13) | 14.2% (22/155) | 0.825 | |
> 4.0 | 6.5% (6/93) | 4.1% (2/49) | 7.7% (1/13) | 5.8% (9/155) | 0.764 | |
 Convalescent phasea | Mean ± SD | 0.09 ± 0.13 | 0.29 ± 0.98 | 0.27 ± 0.73 | 0.17 ± 0.60 | 0.209 |
> 0.25 | 14.3% (10/70) | 13.5% (5/37) | 16.7% (2/12) | 14.3% (17/119) | 1.000 | |
> 0.5 | 1.4% (1/70) | 13.5% (5/37) | 8.3% (1/12) | 5.9% (7/119) | 0.030 | |
> 1.0 | 0% (0/70) | 5.4% (2/37) | 8.3% (1/12) | 2.5% (3/119) | 0.084 | |
> 1.5 | 0% (0/70) | 5.4% (2/37) | 8.3% (1/12) | 2.5% (3/119) | 0.084 | |
> 2.0 | 0% (0/70) | 5.4% (2/37) | 8.3% (1/12) | 2.5% (3/119) | 0.084 | |