| Title |
Survival analysis of patients with dermatomyositis and polymyositis
|
|---|---|
| Published in |
Clinical Rheumatology, September 2011
|
| DOI | 10.1007/s10067-011-1840-0 |
| Pubmed ID | |
| Authors |
Kuang-Hui Yu, Yeong-Jian Jan Wu, Chang-Fu Kuo, Lai-Chu See, Yu-Ming Shen, Hsiao-Chun Chang, Shue-Fen Luo, Huei-Huang Ho, I-Jung Chen |
| Abstract |
To estimate the mortality rate and identify factors predicting survival in patients with polymyositis (PM) and dermatomyositis (DM). The medical records of 192 PM/DM patients who were treated at Chang Gung Memorial Hospital from 1999 through 2008 were retrospectively reviewed. The Taiwan National Death Registry (1999-2008) was used to obtain their survival status. Thirty-one (16.1%) of the 192 patients with PM/DM had an associated malignancy; 41 (21.4%) had interstitial lung disease (ILD). During the follow-up period, 55 (28.6%) patients died and the overall cumulative survival rate was 79.3% at 1 year, 75.7% at 2 years, 69.9% at 5 years, and 66.2% at 10 years. In univariate analysis, older age at PM/DM onset, anemia, thrombocytopenia, leukopenia, diabetes mellitus, ILD, cancer, and non-use of azathioprine were associated with higher mortality (p = 0.0172, 0.0484, <0.0001, 0.0008, 0.0001, 0.0036, 0.0010, and 0.0019, respectively). In multivariate Cox regression analysis, thrombocytopenia (hazard ratio [HR] 4.94, 95% confidence interval [CI] 2.60-9.37, p < 0.0001), diabetes mellitus (HR 2.57, 95% CI 1.38-4.80, p < 0.0001), cancer (HR 2.30, 95% CI 1.26-4.22, p = 0.0030), and ILD (HR 1.98, 95% CI 1.11-3.51, p = 0.0182) were positively associated with mortality. Use of azathioprine (HR 0.35, 95% CI 0.16-0.74, p = 0.0064) was negatively associated with mortality. This study confirmed the high mortality rate (28.6%) in PM/DM patients. Survival time was significantly reduced in patients with thrombocytopenia, diabetes mellitus, ILD, and cancer patients than in those without these conditions. |
X Demographics
The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 50% |
| United Kingdom | 1 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 50% |
| Scientists | 1 | 50% |
Mendeley readers
The data shown below were compiled from readership statistics for 43 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 43 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 7 | 16% |
| Student > Ph. D. Student | 7 | 16% |
| Student > Master | 5 | 12% |
| Student > Postgraduate | 4 | 9% |
| Student > Doctoral Student | 3 | 7% |
| Other | 9 | 21% |
| Unknown | 8 | 19% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 17 | 40% |
| Immunology and Microbiology | 4 | 9% |
| Nursing and Health Professions | 3 | 7% |
| Agricultural and Biological Sciences | 2 | 5% |
| Mathematics | 1 | 2% |
| Other | 5 | 12% |
| Unknown | 11 | 26% |
Attention Score in Context
This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 23 March 2012.
All research outputs
#14,143,536
of 22,663,969 outputs
Outputs from Clinical Rheumatology
#1,778
of 2,977 outputs
Outputs of similar age
#83,684
of 126,336 outputs
Outputs of similar age from Clinical Rheumatology
#8
of 18 outputs
Altmetric has tracked 22,663,969 research outputs across all sources so far. This one is in the 35th percentile – i.e., 35% of other outputs scored the same or lower than it.
So far Altmetric has tracked 2,977 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.9. This one is in the 37th percentile – i.e., 37% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 126,336 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 31st percentile – i.e., 31% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 18 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 50% of its contemporaries.