Ten years of follow-up data in psoriatic arthritis: results based on standardized monitoring of patients in an ordinary outpatient clinic in southern Norway

Haugeberg, Glenn; Michelsen, Brigitte; Tengesdal, Stig; Hansen, Inger Johanne Widding; Diamantopoulos, Andreas; Kavanaugh, Arthur

doi:10.1186/s13075-018-1659-z

Table 1 Clinical and demographic data for our study sample

From: Ten years of follow-up data in psoriatic arthritis: results based on standardized monitoring of patients in an ordinary outpatient clinic in southern Norway

Year (patients)	Females, n (%)	Age (years)	BMI (kg/m²)	Education (years)	Full-time job if aged < 65 years, n (%)	Current smoker, n (%)	Disease duration (years)	RF-positive, n (%)
2008 (n = 106)	52 (49.1%) [100%]	59.5 (13.5) [100%]	NA	NA	NA	NA	7.3 (8.0) [100%]	4 (7.1%) [52.8%]
2009 (n = 268)	140 (52.2%) [100%]	60.3 (11.8) [100%]	NA	NA	NA	NA	8.2 (7.4) [100%]	10 (6.7%) 150 [56.0%]
2010 (n = 318)	158 (49.7%) [100%]	60.5 (12.1) [100%]	27.4 (4.8) [91.8%]	12.3 (3.5) [94.0%]	73 (39.2%) 194^a [95.9%]	59 (19.6%) [94.7%]	8.3 (7.2) [100%]	14 (6.8%) [64.5%]
2011 (n = 365)	181 (49.6%) [100%]	59.4 (12.5) [100%]	27.6 (4.8) [97.3%]	12.3 (3.7) [88.5%]	84 (40.2%) 233^a [89.7%]	71 (21.8%) [89.3%]	8.9 (7.4) [100%]	15 (5.6%) [73.4%]
2012 (n = 377)	179 (47.5%) [100%]	58.6 (12.3) [100%]	27.4 (4.8) [96.6%]	12.3 (3.7) [97.3%]	86 (35.5%) 250^a [96.8%]	70 (19.1%) [97.1%]	9.2 (7.4) [100%]	17 (5.8%) [78.2%]
2013 (n = 397)	197 (49.6%) [100%]	58.8 (12.3) [100%]	27.6 (4.4) [98.0%]	12.4 (3.6) [98.2%]	93 (35.6%) 264^a [98.9%]	69 (17.6%) [98.5%]	9.7 (7.9) [100%]	17 (5.1%) 335 [84.4%]
2014 (n = 412)	208 (50.5%) [100%]	58.3 (12.3) [100%]	27.7 (4.6) [96.8%]	12.6 (3.4) [97.1%]	107 (39.1%) 282^a [97.2%]	71 (17.7%) [97.3%]	9.8 (7.9) [100%]	13 (3.9%) [81.1%]
2015 (n = 384)	197 (51.3%) [100%]	56.8 (12.6) [100%]	27.7 (4.7) [98.2%]	12.5 (3.6) [97.7%]	90 (32.8%) 280^a [97.9%]	60 (15.9%) [98.2%]	10.3 (8.1) [100%]	10 (3.3%) [79.9%]
2016 (n = 340)	165 (48.5%) [100%]	57.1 (12.6) [100%]	27.7 (5.0) [97.4%]	12.6 (3.5) [96.8%]	68 (29.2%) 239^a [97.5%]	51 (15.4%) [97.6%]	10.6 (8.3) [100%]	9 (3.2%) [82.4%]
2017 (n = 341)	158 (46.3%) [100%]	56.0 (12.3) [100%]	28.0 (4.8) [97.9%]	12.9 (3.4) [97.1%]	87 (36.0%) 249^a [97.2%]	47 (14.1%) [97.7%]	11.3 (8.5) [100%]	10 (3.6%) [80.6%]
Mean for the period	49.4%	58.4 (12.4)	27.6 (4.7)	12.5 (3.6)	35.8%	17.6%	9.6 (7.9)	4.8%
P value^b 2008–2017	0.94	< 0.001	NA	NA	NA	NA	< 0.001	0.41
P value^b 2013–2017	0.71	0.001	0.38	0.11	0.34	0.64	0.003	0.74

Values are shown as mean (standard deviation) unless otherwise indicated
Percentages within square brackets represent patients with available data
BMI body mass index, RF rheumatoid factor, NA not available
^aNumbers of patients aged > 65 years
^bχ² test for categorical and linear regression for continuous variables was used to test for differences during follow-up

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