Table 3.

Characteristics of patients in PCOOH and ED datasets

	PCOOH patients (N = 724,921)	%	ED patients (N = 60,106)	%
Age
< =5	119,611	16.5	7482	14.5
6–17	78,757	10.9	6414	12.4
18–45	263,234	36.3	17,905	34.6
46–70	154,826	21.4	12,361	23.9
71+	108,486	15.0	7524	14.6
Not recorded	7	–	8420	–
Sex
Female	420,663	58.0	–	–
Male	304,258	42.0	–	–
Number of contacts
1	532,807	73.5	40,011	66.6
2–5	181,906	25.1	18,965	31.6
6–10	8105	1.1	951	1.6
11–50	2002	0.3	177	0.3
51–100	79	0.01	2	0.003
101+	22	0.003	0	–