Table 1: Demographic and baseline characteristics of patients.
Characteristic
† |
AS (N = 187)
|
PsA (N = 385)
|
P-value |
Total (N = 572)
|
Age (years), mean (SD) |
46.6 (12.2) |
53.0 (11.1) |
<0.001°° |
50.9 (11.8) |
Male, n (%) |
120 (64.2) |
161 (41.8) |
<0.001° |
281 (49.1) |
Weight (kg), mean (SD) |
83.5 (15.9) |
85.7 (19.0) |
0.315°° |
85.0 (18.0) |
BMI (kg/m
2
), mean (SD) |
27.6 (5.0) |
29.2 (6.1) |
0.007°° |
28.7 (5.8) |
BMI ≥25 kg/m
2
, n (%) |
122 (65.9) |
278 (73.9) |
0.059° |
400 (71.3) |
BMI ≥30 kg/m
2
, n (%) |
55 (29.7) |
148 (39.4) |
0.031° |
203 (36.2) |
Non-smoker, n (%) |
74 (39.8) |
188 (48.8) |
NA |
262 (45.9) |
Ex-smoker, n (%) |
31 (16.7) |
66 (17.1) |
NA |
97 (17.0) |
Smoker, n (%) |
63 (33.9) |
102 (26.5) |
NA |
165 (28.9) |
Smoking time >10 years, n (%) |
51 (85.0) |
83 (91.2) |
NA |
134 (88.7) |
Duration between first symptoms and confirmed diagnosis*†,
n (%)
|
<1 year |
37 (22.4) |
85 (24.5) |
0.070° |
122 (23.8) |
1 to <2 years |
20 (12.1) |
65 (18.7) |
NA |
85 (16.6) |
2 to <5 years |
30 (18.2) |
71 (20.5) |
NA |
101 (19.7) |
5 to <10 years |
37 (22.4) |
48 (13.8) |
NA |
85 (16.6) |
≥10 years |
41 (24.8) |
78 (22.5) |
NA |
119 (23.2) |
╥Assessment only, not the result itself
*Patient-reported (patient health record).
†
Missing values not included in % calculations
AS, Ankylosing Spondylitis; BMI, Body Mass Index; HLA, Human Leukocyte Antigen; N, number of patients; NA, Not Applicable/Not Available; PsA, Psoriatic Arthritis; SD, Standard Deviation.
°Fisher´s exact test, °° Wilcoxon test