Table 4. Percent distribution of self-reported serious illnesses by diagnostic and socio-economic groups.

Asset-based socio-economic quintiles	Chronic lifelong conditions	Acute health problems	Non-specified conditions	No diagnosis	All diagnostic groups
Poorest quintile (n = 6,540)	2.35	6.65	5.52	2.69	17.22
2 (n = 6,711)	2.98	6.20	5.10	2.21	16.48
3 (n = 6,608)	3.33	5.42	4.98	1.29	15.01
4 (n = 6,636)	3.04	4.61	4.88	1.24	13.77
Richest quintile (n = 6,615)	3.43	3.82	4.60	0.89	12.74
All the five quintiles (n = 33,110)*	3.03	5.34	5.01	1.66	15.04

*For 51 household members data were missing to calculate SES.