Table 1. Description of the study sample and comparison between respondents and nonrespondents.

Feature	Respondents	Nonrespondents	P value
Age 1	[N = 309]	[N = 78] 2
	46.1 years (±12.0)	51.6 years (±12.5)	<0.001
Female gender 3	[N = 309]	[N = 86]
	58.3 (52.7–63.8)	46.5 (35.8–57.3)	0.08
Time practicing rheumatology 3	[N = 302]	N/A
0–10 years	37.4 (31.9–42.9)	N/A
11–20 years	22.5 (17.8–27.3)	N/A
21–30 years	22.2 (17.5–26.9)	N/A
≥31 years	17.9 (13.5–22.2)	N/A
Gout patients seen monthly 3	[N = 302]	N/A
0–5 patients	33.1 (27.8–38.5)	N/A
6–10 patients	35.8 (30.3–41.2)	N/A
11–20 patients	20.9 (16.3–25.5)	N/A
≥21 patients	10.3 (6.8–13.7)	N/A
Type of practice 3	[N = 302]	N/A
Academic	1.3 (0.0–2.6)	N/A
Private	53.3 (47.7–59.0)	N/A
Combined	45.4 (39.7–51.0)	N/A
Board certified (BSR) 3	[N = 309]	[N = 86]
Yes	86.7 (82.9–90.5)	70.9 (61.1–80.7)	0.001
2013 BSR Meeting 3	[N = 309]	[N = 86]
Yes	64.1 (58.7–69.5)	46.5 (35.8–57.3)	0.003

¹Mean (standard deviation)

²8 missing data

³proportion (95% confident interval).

N/A: not available; BSR: Brazilian Society of Rheumatology.