|
Security devices
|
Burglary with entry
|
Attempted burglary
|
|---|
| |
SPF
|
NIE
|
SPF
|
NIE
|
|---|
|
WD
|
12.54**
|
3.17
|
7.56**
|
2.23
|
|
EWD
|
34.41**
|
22.03
|
13.93**
|
6.62
|
|
WSD
|
32.30**
|
20.87
|
7.63**
|
0.99
|
|
EWBD
|
16.49**
|
3.21
|
7.61**
|
−0.34
|
|
EWSD
|
31.45**
|
17.02
|
17.53**
|
8.90
|
|
EIWBD
|
29.62**
|
12.84
|
10.77**
|
1.35
|
|
EIWD
|
49.12**
|
33.23
|
21.78**
|
13.00
|
|
WBD
|
8.92
|
−1.35
|
5.81
|
−0.15
|
|
IWD
|
16.54**
|
3.66
|
24.96**
|
18.17
|
|
EIWSBD
|
138.85**
|
120.01
|
11.16**
|
0.43
|
|
EWSBD
|
32.44**
|
17.11
|
9.04**
|
−0.23
|
|
EIWSD
|
28.36**
|
10.42
|
32.11**
|
22.01
|
|
WSBD
|
18.66**
|
6.34
|
8.50*
|
1.22
|
|
WS
|
12.64**
|
4.01
|
4.06
|
−1.24
|
|
EW
|
17.76**
|
8.18
|
6.19
|
0.22
|
|
IWBD
|
18.24**
|
4.47
|
10.33*
|
2.89
|
|
IWSD
|
23.04**
|
8.11
|
11.47**
|
3.35
|
|
SD
|
7.67
|
2.83
|
3.14
|
0.48
|
|
IWSBD
|
23.41**
|
7.59
|
5.44
|
−3.31
|
|
ED
|
10.77
|
4.97
|
0.69
|
−0.62
|
|
WB
|
4.68*
|
−2.79
|
3.26
|
−1.36
|
|
EWS
|
14.15
|
2.51
|
4.38
|
−2.91
|
|
EWB
|
10.25
|
−0.24
|
2.55
|
−4.06
|
|
EIW
|
13.20
|
0.11
|
13.79
|
6.36
|
|
ESD
|
15.30
|
7.45
|
8.88
|
4.24
|
|
CWD
|
24.01*
|
13.04
|
12.55
|
6.23
|
|
CEIWBD
|
34.00*
|
15.63
|
5.92
|
−4.48
|
|
IW
|
8.33
|
7.74
|
7.74
|
2.29
|
|
CEWD
|
—
|
—
|
3.23
|
−5.07
|
|
CEWBD
|
32.44*
|
17.57
|
3.77
|
−5.17
|
|
BD
|
1.96**
|
−1.72
|
1.01**
|
−0.97
|
|
CWSD
|
51.90*
|
38.88
|
18.08
|
10.45
|
|
EIWB
|
11.52
|
−2.47
|
2.29
|
−5.78
|
|
WSB
|
13.87
|
4.34
|
2.42
|
−3.52
|
|
EBD
|
6.71
|
0.02
|
2.34
|
−1.63
|
|
ID
|
9.62
|
3.32
|
2.23
|
−0.57
|
|
EWSB
|
12.68
|
0.14
|
3.31
|
−4.61
|
|
CEWSBD
|
—
|
—
|
6.39
|
−3.86
|
|
EID
|
9.17
|
−0.13
|
6.39
|
1.60
|
|
ES
|
4.54
|
−0.52
|
1.84*
|
−1.46
|
|
EIWS
|
—
|
—
|
3.58
|
−5.17
|
|
CW
|
14.54
|
6.37
|
10.13
|
5.16
|
|
CWBD
|
—
|
—
|
4.99
|
−1.97
|
|
IWS
|
5.10
|
−7.04
|
8.88
|
2.12
|
|
IWB
|
6.26
|
−4.72
|
4.36
|
−1.72
|
- *0.05>P⩾0.01; **P⩽0.01.
- Abbreviations: B=Burglar alarm; C=CCTV; D=Door double or deadlocks; E=External lights on a timer or sensor switch; I=Indoor lights on a timer or sensor switch; S=Security chains; W=Window locks.
-
Notes: Results are given in descending order of sample size that reported each configuration; configurations not reported by victims at the time of first burglary cannot produce SPFs.