Table 1

Estimated number of gout visits in the US from 1993 to 2009 by age and gender
Men Women
Age, years 1993 to 1996 1997 to 2000 2001 to 2005 2006 to 2009 P-valuea 1993 to 1996 1997 to 2000 2001 to 2005 2006 to 2009 P-valuea
20 to 39 704,285 1,039,594 769,990 1,591,411 0.09 136,926 199,082 105,708 280,295 0.62
40 to 59 3,658,756 4,903,678 5,746,758 7,944,502 0.07 1,180,143 965,395 2,037,772 1,409,484 0.81
60 to 79 5,590,948 5,836,312 10,280,899 14,921,770 <0.001 2,192,226 2,456,175 3,604,061 5,349,247 0.01
> = 80 800,007 1,585,809 2,617,818 3,721,661 0.006 1,172,668 851,594 1,784,431 3,005,855 0.06
Overall 10,753,996 13,365,393 19,415,465 28,179,344 4,681,963 4,472,246 7,531,972 10,044,881

aP-values are for trend: the test was performed using bivariate logistic regression models with calendar year as a continuous variable.

Krishnan and Chen

Krishnan and Chen Arthritis Research & Therapy 2013 15:R181   doi:10.1186/ar4370

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