Table 1.
Sociodemographic, clinical characteristics, and PROM scores of patients with axial SpAa (n=118).
| Characteristics | Median (Interquartile range) or n (%) |
|---|---|
| Age | 35 (28, 49) |
| Gender | |
| Male | 96 (81.4) |
| Race | |
| Chinese | 112 (94.9) |
| Malay | 1 (0.8) |
| Indian | 1 (0.8) |
| Othersb | 4 (3.4) |
| Highest education qualification | |
| No formal education | 1 (0.8) |
| Primary | 2 (1.7) |
| Secondary | 17 (14.4) |
| Tertiary | 98 (83.1) |
| Marital status | |
| Single | 59 (50.0) |
| Married | 54 (45.8) |
| Divorced | 5 (4.2) |
| Living arrangement | |
| Staying alone | 10 (8.5) |
| Staying with family/friends | 108 (91.5) |
| Occupation | |
| Employed | 85 (72.0) |
| Unemployed | 7 (5.9) |
| Retired | 9 (7.6) |
| Othersc | 17 (14.4) |
| Disease duration, years | 6.6 (1.5, 12.2) |
| PROM score (Range) | |
| SF-36 | |
| Physical functioning (0–100) | 85 (70, 95) |
| Role-physical (0–100) | 78.1 (62.5, 100) |
| Bodily pain (0–100) | 62 (51, 74) |
| General health (0–100) | 57 (45, 72) |
| Vitality (0–100) | 62.5 (50, 75) |
| Social functioning (0–100) | 87.5 (75, 100) |
| Role-emotional (0–100) | 83.3 (75, 100) |
| Mental health (0–00) | 80 (65, 90) |
| Physical Component Summary (Median: 50, SD 10) | 46.2 (38.6, 53.0) |
| Mental Component Summary (Median: 50, SD 10) | 47.5 (39.8, 53.9) |
| HAQ-DI (0–3) | 1.1 (1, 1.4) |
| BASDAI (0–10) | 2.1 (1.5, 4.2) |
| BASFI (0–10) | 1.1 (0.3, 2.8) |
| PGA (0–10) | 3 (1, 4) |
| Pain (0–10) | 2 (1, 4) |
| WPAI:SpA | |
| Presenteeism (0–100) | 20 (0, 30) |
| Absenteeism (0–100) | 0 (0, 0) |
| Work productivity loss (0–100) | 20 (10, 47.7) |
| Activity loss (0–100) | 20 (0, 30) |
As diagnosed with the 2011 Assessment of Spondyloarthritis International Society (ASAS) criteria.
Others refer to Bamar, Filipino, and Ceylonese ethnicity.
Others refer to full-time students, patients serving full-time military training or homemakers.
BASDAI: Bath Ankylosing Spondylitis Disease Activity Index; BASFI: Bath Ankylosing Spondylitis Functional Index; GCE: general certificate of education; PGA: Patient Global Assessment; HAQ-DI: Health Assessment Questionnaire-Disability Index; PROM: patient reported outcome measures; PSLE: primary school leaving examination; SD: standard deviation; WPAI:SpA: Work Productivity and Activity Impairment Questionnaire: Spondyloarthritis.