Figure 1.
The pattern of joint involvements
| Number (%) | |
|---|---|
| Number of joint involvements | |
| Monoarthritis | 14 (36.8) |
| Oligoarthritis | 20 (52.6) |
| Polyarthritis | 4 (10.5) |
| Site of joint involvements | |
| Wrist joint | 18 (47.4) |
| Ankle joint | 17 (44.7) |
| Knee joint | 14 (36.8) |
| Shoulder joint | 6 (15.8) |
| Metacarpophalangeal (MCP) joint | 6 (15.8) |
| Elbow joint | 5 (13.2) |
| Proximal interphalangeal (PIP) joint | 3 (7.9) |
| Hip joint | 2 (5.3) |
| Tarsometatarsal joint | 2 (5.3) |
| Sternoclavicular joint | 1 (2.6) |
| Axial and sacroiliac joint | 0 (0) |
| Temporomandibular joint | 0 (0) |
Clinical data of the patients with DGI
| Total patients (n = 41) | Definite DGI (n = 27) | Probable DGI (n = 14) | P* | |
|---|---|---|---|---|
| Presenting symptoms | ||||
| Fever | 37 (90.2%) | 26 (96.3%) | 11 (78.6%) | 0.107 |
| Chills | 14 (34.1%) | 8 (29.6%) | 6 (42.9%) | 0.494 |
| Joint pain | 41 (100%) | 27 (100%) | 14 (100%) | – |
| Skin lesions | 11 (26.8%) | 7 (25.9%) | 4 (28.6%) | 1.000 |
| Genitourinary symptoms (dysuria or discharge) | 12 (29.3%) | 9 (33.3%) | 3 (21.4%) | 0.494 |
| Presenting signs | ||||
| Arthritis | 38 (92.7%) | 25 (92.6%) | 13 (92.9%) | 1.000 |
| Number | ||||
| Median, IQR, range | 2, 1–3, 1–14 | 2, 1–3, 1–14 | 2, 1–3, 1–7 | 1.000 |
| Distribution of joint involvement | 0.885 | |||
| Monoarthritis | 14 (36.8%) | 10 (40%) | 4 (30.8%) | |
| Oligoarthritis | 20 (52.6%) | 12 (48%) | 8 (61.5%) | |
| Polyarthritis | 4 (10.5%) | 3 (12%) | 1 (7.7%) | |
| Tenosynovitis | 26 (63.4%) | 14 (51.9%) | 12 (85.7%) | 0.033 |
| Skin lesion | 16 (39%) | 9 (33.3%) | 7 (50%) | 0.300 |
| Urethral discharge | ||||
| Yes | 7 (17.1%) | 5 (20.8%) | 2 (14.3%) | |
| No | 31 (75.6%) | 19 (79.2%) | 12 (85.7%) | 1.000 |
| Missing | 3 cases | 3 cases | - | |
Demographic data of patients with DGI
| Total patients (n = 41) | Definite DGI (n = 27) | Probable DGI (n = 14) | |
|---|---|---|---|
| Age at diagnosis | 30, 20–37, 16–81 | 33, 22–41, 16–81 | 22, 19–32, 16–42 |
| Median, IQR, range (years) | |||
| 15–30 | 22 (53.7%) | 12 (44.4%) | 10 (71.4%) |
| 31–40 | 10 (24.4%) | 8 (29.6%) | 2 (14.3%) |
| 41–50 | 5 (12.2%) | 3 (11.1%) | 2 (14.3%) |
| 51–60 | 1 (2.4%) | 1 (3.7%) | 0 |
| >60 | 3 (7.3%) | 3 (11.1%) | 0 |
| Sex | |||
| Male | 17 (41.5%) | 10 (37%) | 7 (50%) |
| Female | 24 (58.5%) | 17 (63%) | 7 (50%) |
Microbiological data of the patients with DGI
| Number of tested patients (%) | Number of positive specimens (%) | |
|---|---|---|
| Hemoculture | 32 (78.0) | 4 (12.5) |
| Synovial fluid for aerobic culture | 33 (80.5) | 10 (30.3) |
| Synovial fluid for Gram stain | 29 (70.7) | 11 (37.9) |
| Synovial fluid for PCR or 16s-rRNA amplification for N. gonorrhoeae | 3 (7.3) | 3 (100) |
| Specimen from mucosae for aerobic culture | ||
| Cervical swab | 15 (36.5) | 5 (33.3) |
| Urethral swab | 16 (39.0) | 3 (18.8) |
| Pharyngeal swab | 15 (36.5) | 2 (13.3) |
| Rectal swab | 11 (26.8) | 1 (9.1) |
| Pustule for aerobic culture | 1 (2.4) | 1 (100) |