Giant cell arteritis and thyroid dysfunction: multicentre case-control study -- Duhaut et al. 318 (7181): 434 Data Supplement - eBMJ -- Duhaut et al. 1999;318:434 -- BMJ

Table A
Range of abnormal concentrations of thyroid stimulating hormone, free thyroxine, and positive antiperoxidase and antithyroglobulin antibodies in cases of giant cell arteritis and controls

Variable	No (%)	Median	(5%; 95% centile)	P value*
Thyroid stimulating hormone
Low concentration:
Controls	5 (2.4)	0.15	(0.01; 0.19)	0.921
Cases	13 (4.6)	0.15	(0.06; 0.19)	0.921
High concentration:
Controls	16 (7.7)	6.15	(4.3; 12)	0.561
Cases	12 (4.2)	6.6	(4.3; 53.8)	0.561
Free thyroxine
High concentration:
Controls	1 (0.5)	34.3	-	0.540
Cases	2 (0.7)	38.45	(30.6; 46.3)	0.540
Low concentration:
Controls	0	-	-	NA
Cases	7 (2.5)	8.8	(5.9; 9.7)	NA
Antibodies
Antiperoxidase positive
Controls	29 (13.9)	855	(139; 3844)	0.103
Cases	42 (14.7)	434.5	(115; 8750)	0.103
Antithyroglobulin positive
Controls	47 (22.6)	116	(59; 730)	0.958
Cases	71 (24.9)	107	(60; 1200)	0.958

*Wilcoxon rank sum test performed for comparison of values outside normal range.