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. 2014 Jan 14;7:3. doi: 10.1186/1755-8794-7-3

Table 4.

Comparison of self-reported alcohol intake between PMRP and PhenX

PhenX
 
<1
1-2
3-4
5-7
Combined
PMRP N (%) N (%) N (%) N (%) N (%)
Number of days in the past 30 days that respondent drank one or more drinks
<1
1204 (54.8)
89 (4.0)
22 (1.0)
9 (0.4)
1324 (60.2)
1-2
224 (10.2)
141 (6.4)
41 (1.9)
16 (0.7)
422 (19.2)
3-4
63 (2.9)
66 (3.0)
52 (2.4)
35 (1.6)
216 (9.8)
5-7
42 (1.9)
28 (1.3)
33 (1.5)
133 (6.1)
236 (10.7)
Combined
1533 (69.7)
324 (14.7)
148 (6.7)
193 (8.8)
2198 (100.0)
Kappa = 0.666 (95% CL=0.627, 0.704)
 
<1
1-2
3-4
5 or more
Combined
PMRP
N (%)
N (%)
N (%)
N (%)
N (%)
Usual number of drinks per day
<1
502 (24.9)
96 (4.8)
7 (0.3)
6 (0.3)
611 (30.4)
1-2
231 (11.5)
921 (45.8)
47 (2.3)
21 (1.0)
1220 (60.6)
3-4
15 (0.7)
67 (3.3)
51 (2.5)
11 (0.5)
144 (7.2)
5 or more
6 (0.3)
8 (0.4)
10 (0.5)
14 (0.7)
38 (1.9)
Combined
754 (37.4)
1092 (54.2)
115 (5.7)
52 (2.6)
2013 (100.0)
Kappa = 0.507 (95% CL=0.445, 0.5688)

The numbers are the actual counts (and percent) of people reporting on the two questionnaires the number of days that they had an alcoholic drink in the previous 30 days how drinks they had on a typical days in the previous 30 days. Agreement is noted in bold.