Table 1 Sociodemographic, lifestyle, anthropometric and clinical baseline characteristics.
Characteristics n = 342 | Values |
|---|---|
Female sex, n, % | 166 (48.5) |
Age years (mean ± sd) | 51 ± 12.2 |
Years of education (mean ± sd) | 9.0 ± 4.4 |
Marital status n, % | |
Married | 174 (78.7) |
Single | 26 (11.8) |
Divorced | 14 (6.3) |
Widow | 4 (1.8) |
Others | 3 (1.4) |
Employment status n, % | |
Employed | 153 (59.8) |
Housewifely | 7 (2.7) |
Sick leave | 13 (5.1) |
Retired | 61 (23.8) |
Unemployed | 22 (8.6) |
Type of work n, % | |
Blue collar | 126 (59.7) |
White collar | 85 (40.3) |
BMI kg/m2 (mean ± sd) | 27.5 (7.0) |
BMI kg/m2 n (%) | |
Underweight (< 18.5 kg/m2) | 1 (0.4) |
Normal (18.5–24.99 kg/m2) | 91 (36.6) |
Overweight (25–29.99 kg/m2) | 104 (41.8) |
Obese (\(\:\ge\:\:\)30 kg/m2) | 53 (21.3) |
Smoking habits n, % | |
Never | 176 (67.5) |
In the Past | 55 (21.1) |
Daily | 30 (11.5) |
Alcohol intake n, % | |
Never | 189 (75.6) |
In the Past | 13 (5.2) |
Daily | 48 (19.2) |
Age of 1 st symptoms (mean ± sd) | 38.3 (11.9) |
Age of diagnosis (mean ± sd) | 41.7 (11.6) |
Diagnostic delay (mean ± sd) | 3.1 (4.9) |
Disease duration, years (mean ± sd) | 11.8 (9.3) |
Disease phenotype n, % | |
Predominant axial involvement | 55 (20.5) |
Symmetrical polyarthritis | 140 (52.0) |
Distal interphalangeal arthritis | 14 (3.7) |
Asymmetric oligoarthritis | 61 (22.7) |
Mutilans arthritis | 3 (1.1) |
