Table 1.

Demographic comparison between primary angle-closure glaucoma (PACG) cases and controls

	PACG cases n=3322		Controls n=13 288		P value
	n	(%)	n	(%)
Sex					0.999
Female	2031	61.1	8124	61.1
Male	5164	38.9	1291	38.9
Age group (years)					0.999
20–49	398	12.0	1592	12.0
50–64	1011	30.4	4044	30.4
≥65	1913	57.6	7652	57.6
Age (year), mean (SD)*	65.2 (12.7)		64.8 (13.0)		0.100
Comorbidity
Hypertension	2025	60.6	6896	51.9	<0.001
Ischaemic heart disease	1097	33.0	3561	26.8	<0.001
Hyperlipidaemia	1389	41.8	4399	33.1	<0.001
Congestive heart failure	213	6.41	849	6.39	0.962
Cardiac arrhythmias	540	16.3	1826	13.7	<0.001
Peripheral vascular disorders	201	6.05	571	4.30	<0.001
Stroke	246	7.41	994	7.48	0.883
Headaches	1407	42.4	4772	35.9	<0.001
Migraine	125	3.76	456	3.43	0.353
Epilepsy	30	0.90	144	1.08	0.360
Dementia	110	3.31	448	3.37	0.863
Rheumatoid arthritis	11	0.33	45	0.34	0.957
Systemic lupus erythematosus	3	0.09	8	0.06	0.546
Chronic obstructive pulmonary disease	675	20.3	2343	17.6	<0.001
Asthma	418	12.6	1455	11.0	0.008
Pulmonary circulation disorders	26	0.78	85	0.64	0.366
Diabetes	710	21.4	2148	16.2	<0.001
Hypothyroidism	36	1.08	110	0.83	0.158
Renal failure	448	13.5	1435	10.8	<0.001
Liver diseases	898	27.0	2775	20.9	<0.001
Peptic ulcers	1409	42.4	4503	33.9	<0.001
Hepatitis B	182	5.48	610	4.59	0.032
Tuberculosis	86	2.59	294	2.21	0.194
Deficiency anaemia	114	3.43	381	2.87	0.087
Depression	328	9.87	922	6.94	<0.001
Psychosis	153	4.61	518	3.90	0.064
Metastatic cancer	1	0.03	2	0.02	0.564
Solid tumour	190	5.72	630	4.74	0.020
Cataract	2088	62.9	4077	30.7	<0.001

Data are presented as the number of subjects in each group, with percentages given in parentheses.

χ² test; *t-test.