Table 5.
Number of outpatient (OP) visits and inpatient (IP) admissions from linked and questionnaire data
| Number of OP Visits from linked data (Mean [95% CI]) |
# of self-reported OP visits from Questionnaire | Average Number of IP admissions from linked data (Mean [95% CI]) |
# of self-reported IP admissions from Questionnaire | |||||
|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| Patient Stratification Schemes | 5 year | 1 year | 3 month recall period | 3 months recall period | 5 year | 1 year | 3 month recall period | 3 months recall period |
| Disease Severity Index | ||||||||
| Low (BASDAI < 40) (n = 119 & 133) |
16.78 [13.50-20.06] |
3.84 [2.96-4.72] |
0.87 [0.64-1.09] |
1.06 [0.76-1.36] |
2.43 [1.38-3.48] |
0.59 [0.26-0.91] |
0.11 [0.05-0.17] |
0.08 [0.03-0.13] |
| High (BASDAI > = 40) (n = 117 & 163) |
21.89 [16.87-26.91] |
6.12 [4.29-7.95] |
1.51 [1.06-1.97] |
2.55 [1.54-3.55] |
3.01 [2.27-3.76] |
0.74 [0.51-0.97] |
0.17 [0.10-0.23] |
0.14 [0.07-0.21] |
| Disease Functional Index | ||||||||
| Low (BASFI < 40) (n = 110 & 117) |
14.17 [11.23-17.12] |
3.05 [2.28-3.81] |
0.73 [0.53-0.93] |
0.90 [0.62-1.18] |
2.31 [1.06-3.55] |
0.46 [0.12-0.80] |
0.11 [0.05-0.17] |
0.05 [0.01-0.09] |
| High (BASFI > = 40) (n = 126 & 179) |
23.80 [18.93-28.67] |
6.65 [4.92-8.39] |
1.59 [1.16-2.02] |
2.58 [1.64-3.52] |
3.04 [2.40-3.69] |
0.81 [0.58-1.04] |
0.16 [0.10-0.22] |
0.16 [0.09-0.23] |
| Age | ||||||||
| Age < 50 (n = 90 & 164) |
18.29 [14.64-21.94] |
5.07 [3.10-7.03] |
1.30 [0.81-1.79] |
1.72 [0.80-2.65] |
1.91 [1.29-2.54] |
0.49 [0.24-0.74] |
0.16 [0.08-0.25] |
0.05 [0.01-0.09] |
| Age > = 50 (n = 146 & 192) |
19.95 [15.65-24.24] |
4.91 [3.79-6.03] |
1.12 [0.84-1.39] |
1.84 [1.20-2.48] |
3.21 [2.31-4.11] |
0.77 [0.51-1.04] |
0.13 [0.08-0.18] |
0.15 [0.08-0.22] |
| Sex | ||||||||
| Male (n = 183 & 218) |
18.20 [14.85-21.55] |
4.35 [3.48-5.22] |
1.02 [0.79-1.25] |
1.60 [1.08-2.12] |
2.47 [1.96-2.97] |
0.55 [0.40-0.69] |
0.13 [0.08-0.18] |
0.10 [0.05-0.15] |
| Female (n = 53 & 76) |
23.15 [16.50-29.80] |
7.11 [3.71-10.52] |
1.77 [0.98-2.57] |
2.47 [0.95-4.00] |
3.59 [1.62-5.57] |
1.03 [0.40-1.66] |
0.16 [0.06-0.26] |
0.14 [0.05-0.24] |
| Disease Symptom | ||||||||
| First Symptom at age < = 30 (n = 182 & 226) |
19.04 [15.51-22.57] |
4.81 [3.59-6.04] |
1.23 [0.92-1.54] |
1.85 [1.20-2.51] |
2.38 [1.95-2.81] |
0.58 [0.42-0.73] |
0.14 [0.09-0.19] |
0.10 [0.05-0.15] |
| First Symptom at age > 30 (n = 54 & 70) |
20.22 [14.69-25.75] |
5.50 [3.86-7.14] |
1.04 [0.68-1.40] |
1.61 [0.95-2.27] |
3.97 [1.71-6.23] |
0.99 [0.33-1.65] |
0.16 [0.05-0.26] |
0.17 [0.06-0.28] |