Table 2. Baseline Characteristics of Participants with PWS, England, 2008–2009.

Characteristic	Number of participants (n = 602, except where indicated)	%
Male	289	48
Age Group
<10	39	6
10–29	76	13
30–59	246	41
60+	241	40
Chronic intestinal illness
Any reported chronic intestinal illness	51	8
- Diagnosed by clinician n = 51	27	53
- Self-reported n = 51	19	37
- Missing n = 51	5	10
No chronic intestinal illness reported	528	88
Missing	23	4
Currently taking Medication
Taking antibiotics, steroids or antacids	69	11
Not taking antibiotics, steroids or antacids	500	83
Missing/unknown	38	6
Water Consumption from PWS
Report drinking from PWS	582	97
Report drinking no water from PWS	6	1
Missing	14	2
Cold water consumption from PWS/glasses
0	65	11
1–5	437	73
6–10	72	12
11–15	4	0.7
Missing	24	4
Boiled water consumption from PWS/glasses
0	70	12
1–5	313	52
6–10	183	30
11–15	7	1
16–20	3	0.5
Missing	26	4
“Generally my tap water is good” d
Completely disagree, disagree a lot, disagree	17	3
Neither agree nor disagree	23	4
Completely agree, agree a lot, agree	502	83
Missing	60	10

^dSeven point likert scale response to question, results aggregated.