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. 2016 Feb 2;144(10):2087–2097. doi: 10.1017/S0950268815003325

Table 3.

Number of household contacts tested by relationship status to the case and their outcomes depending on the results of this testing

Variable Group 1 (North Middlesex retrospective) Group 2 [North Middlesex prospective (DBS)] Group 3 (Newham retrospective) Group 4 (Newham prospective) Total
No. of contacts
Child 54 90 65 63 272
Partner 33 56 81 39 209
Other adult 4 23 24 59 110
Test results
Child
 Negative (%) 23 (42·6) 85 (94·4) 15 (23·1) 8 (12·7) 131 (48·2)
 Positive [current] (%) 0 (0·0) 5 [3], (5·6 [3·3]) 4 [4], (6·2 [6·2]) 1 [1], (1·6 [1·6]) 10 [8], (3·7 [2·9])
 Unknown (%) 8 (14·8) 0 (0·0) 23 (35·4) 11 (17·5) 42 (15·4)
 Not tested 23 (42·6) 0 (0·0) 23 (35·4) 43 (68·3) 89 (32·7)
Partner
 Negative (%) 6 (18·2) 19 (33·9) 8 (9·9) 5 (7·9) 38 (18·2)
 Positive [current] (%) 1 [1], (3·0 [3·0]) 35 [12], (62·5 [21·4]) 6 [6], (7·4 [7·4]) 2 [2], (5·1 [5·1]) 44 [21], (21·1 [10·0])
 Unknown (%) 3 (9·1) 0 (0·0) 10 (12·3) 2 (5·1) 15 (7·2)
 Not tested 21 (63·6) 2 (3·57) 57 (70·4) 30 (76·9) 110 (52·6)
Other adult
 Negative (%) 1 (25·0) 10 (43·5) 2 (8·3) 10 (16·9) 23 (20·9)
 Positive [current] (%) 0 (0·0) 13 [5], (56·5 [21·7]) 2 [2], (8·3 [8·3]) 5 [5], (8·5 [8·5]) 20 [12], (18·2 [10·9])
 Unknown (%) 0 (0·0) 0 (0·0) 2 (8·3) 3 (5·1) 5 (4·5)
 Not tested 3 (75·0) 0 (0·0) 18 (75·0) 41 (69·5) 62 (56·4)
If negative then vaccinated?
Child (%) 22 (95·7) 75 (88·2) 14 (93·3) 6 (75) 117 (89·3)
Partner (%) 2 (33·3) 7 (36·8) 4 (50·0) 5 (100·0) 18 (47·3)
Other adult (%) 0 (0·0) 7 (70·0) 1 (50·0) 3 (30·0) 11 (47·8)
No. vaccinated of total contacts
Child (%) 22 (40·7) 75 (83·3) 14 (21·5) 6 (9·5) 117 (43·0)
Partner (%) 2 (6·1) 7 (12·5) 4 (4·9) 5 (12·8) 18 (8·6)
Other adult (%) 0 (0·0) 7 (30·4) 1 (4·2) 3 (5·1) 11 (10·0)
If current infection, referred?
Child (%) n.a. 2 (66·7) 4/4 (100·0) 1/1 (100·0) 7/8 (87·5)
Partner (%) 0 (0·0) 2 (16·7) 2/6 (33·3) 1/2 (50·0) 5/21 (23·8)
Other adult (%) n.a. 4 (80·0) 1/2 (50·0) 4/5 (80·0) 9/12 (75·0)
No. referred of total contacts
Child (%) 0 (0·0) 2 (2·2) 4 (6·2) 1 (1·6) 7 (2·6)
Partner (%) 0 (0·0) 2 (3·6) 2 (2·5) 1 (2·6) 5 (2·4)
Other adult (%) 0 (0·0) 4 (17·4) 1 (4·2) 1 (1·7) 9 (8·2)

n.a., Not applicable.