Table 1. Reports of translated HADS versions used, citations of the Zigmond and Snaith 1983 study and citations of validation studies with non-English HADS versions, by investigators in non-English speaking countries.

Source country of papers	Number of papers examined per country	Reporting of use of translated versions of the HADS	Languages of HADS translations as reported by investigators	Number of citations of Zigmond and Snaith (1983)	Citations of validation studies with non-English versions
Austria	4	1	German	4	1
Belgium	4	0	**	4	0
Brazil	12	4	Portuguese	12	6
Canada (French speaking part)	2	2	French - Canadian	2	2
China	19	18	Chinese, Chinese – Cantonese, Mandarin	16	17
Denmark	9	2	Danish	8	2
France	29	4	French	21	11
Germany	38	22	German	30	29
Greece	11	3	Greek	11	5
Holland	55	25	Dutch	45	33
Iceland	5	4	Icelandic	5	4
India	5	2	Malayalam, Urdu	5	3
Iran	6	6	Iranian, Persian	5	6
Israel	4	1	Hebrew	3	1
Italy	24	10	Italian	23	9
Japan	25	20	Japan	23	19
Jordan	2	0	**	2	1
Kosovo	1	0	**	1	0
Lithuania	4	0	**	4	2
Malaysia	3	2	Malay, Bahasa Malay, Mandarin- Chinese and Tamil	2	1
Morocco	1	1	Arabic	1	1
Nigeria	1	0	**	1	1
Norway	34	9	Norwegian	30	14
Palestine	1	0	**	1	0
Poland	3	0	**	2	0
Portugal	6	5	Portuguese	6	6
Russia	1	0	**	0	0
Singapore	2	0	**	2	1
South Korea	8	6	Korean	7	6
Spain	18	11	Spanish	16	11
Sweden	43	11	Swedish	42	9
Switzerland	11	6	German	9	7
Taiwan	7	2	Chinese-Cantonese	4	3
Thailand	2	1	Thai	1	1
Turkey	17	11	Turkish	13	14
Total	417	189		361	226

^**The article(s) did not report the language version of the HADS used.