Table 3.

Patient disease severity and age

		Age group
		40–49 years n=236		50–59 years n=248		60–69 years n=202		70–75 years n=78
		n	%	n	%	n	%	n	%
Severity	Mild	81a	34	62	25	39	19	15	19
	Moderate	126	53	152b	61	109	54	34	44
	Severe	27	11	30	12	43c	21	18d	23
	Very severe	2	1	4	2	11	5	11e	14

Notes:

^ap=0.001 (comparison to 60–69 years);

^bp=0.006 (comparison to 70–75 years);

^cp=0.005 (comparison to 40–49 years);

^dp=0.011 (comparison to 40–49 years);

^ep=0.001 (comparison to 40–49 and 50–59 years).