Table 4

 Factors predicting CIES related outcomes

NumberCIES ⩾26 (moderate/severe)CIES ⩾9 (mild/moderate/severe)Intrusive score (CIES) (>75th centile)Avoidance score (CIES) (>75th centileAt least one hyper-arousal behaviour (sometimes/always)
(row %)ORuORm(row %)ORuORm(row %)ORuORm(row %)ORuORm(row %)ORuORm
ORu, odds ratio is calculated univariately. ORm, odds ratio is obtained by multivariable logistic regression models, using variables significant in the univariate analyses; only significant items were tabulated in the table. Variables that are non-significant in all the univariate analysis were not tabulated in this table, including education level, current marital status, LOT score, knew someone from Hong Kong then staying in affected countries. NA, not applicable; NS, univariate significant but multivariate non-significant; – unvariate non-significant.
(All)6047.3NA42.3NA28.0NA24.1NA39.7NA
Sex
    Female3128.71.0048.21.00NS33.41.00NS26.01.0045.21.00NS
    Male2925.90.6635.90.60**22.10.56**22.00.8033.90.62**
Age group
    18–24939.71.0052.71.00NS34.41.0034.41.001.0038.71.00
    25–392135.20.5139.90.60*25.80.6619.20.45**0.46*34.70.84
    40–602978.10.8340.70.62*27.50.7224.30.610.56*43.81.23
Employment status
    Full time3736.71.0035.81.001.0021.21.001.0021.21.00NS36.71.001.00
    Part time234.30.6343.51.381.0426.11.311.1421.71.0339.11.111.18
    Not employed2078.71.3353.92.10***1.98**40.32.50***2.43***29.61.57*45.41.43*1.61*
Religion status
    No religion4196.51.0041.01.00NS26.61.00NS22.01.00NS37.91.001.00
    Christian/Catholic1197.61.1837.80.8826.10.9724.41.1437.00.961.00
    Buddhist/Taoist4712.82.1161.72.32**40.41.87*40.42.41**63.82.89**2.55**
    Folk religion1811.11.8150.01.4438.91.7527.81.3638.91.040.73
Ever travelled to affected areas
    No4296.81.0040.81.0026.81.0023.21.0036.11.001.00
    Yes1638.61.2945.41.2030.71.2125.81.1547.91.62**1.76**
Relatives then living in affected countries
    No5206.21.00NS40.31.001.0026.61.0023.21.0038.51.00
    Yes8013.92.46*55.71.86*1.99*36.71.6030.01.4247.51.45
Number of times of media exposure/day
    <51525.91.00NS34.21.001.0020.41.001.0024.31.0037.51.00
    5–102483.20.5339.71.271.1524.31.251.1519.80.7736.30.95
    >1020413.42.45*51.52.04**1.68*38.12.40***2.04*29.11.2745.61.40
Distressful image exposure score (DIES)
    Low (⩽16)1964.11.00NS36.61.00NS20.11.00NS24.61.0034.21.00NS
    Medium (17–20)2785.81.4339.41.1225.31.3421.30.8335.31.05
    High (⩾21)12915.54.27**57.42.33***45.73.35***29.51.2858.12.67***
Weighted visual unrest score (WVUS)
    Low (⩽21)1572.51.00NS22.31.001.0012.71.001.0011.51.001.0026.81.00NS
    Medium (22–40)3165.42.1941.12.43***2.67***24.52.23**1.2925.12.59**2.36**40.51.86**
    High (⩾41)12518.48.63***71.28.62***14.67***56.08.72***4.04***38.44.81***4.74***54.43.27***
Distressful content exposure score (DCES)
    Low (⩽18)1553.21.00NS36.41.00NS17.51.00NS24.01.0030.31.00NS
    Medium (19–23)3388.02.6039.51.1428.51.87*22.60.9239.61.51*
    High (⩾24)11011.03.69*59.62.59***41.33.31***29.11.3052.72.56***
Weighted content unrest score (WUS)
    Low (⩽27)1520.021.71.00NS9.91.001.0013.81.00NS23.71.001.00
    Medium (28–46)3176.71.001.0042.52.67***28.63.65***1.8524.42.02**42.02.33***1.72*
    High (⩾47)13117.73.01**5.61***66.97.30***48.58.59***2.62*35.93.49***53.43.70***2.43**
Tsunami caused by human damaging ecosystem
    Disagree3346.61.0039.51.0025.01.0020.41.00NS37.11.00
    Agree2508.01.2345.01.2530.51.3228.51.55*43.21.29
Natural disasters are punishments by God
    Disagree3935.91.0036.11.001.0023.31.001.0019.21.001.0038.41.00
    Agree1959.21.6354.92.16***1.75**36.91.93**1.55*33.82.16***1.83**42.11.16
Major natural disaster would occur in Hong Kong in lifetime
    Disagree2904.51.001.0041.21.0024.91.0024.21.0041.01.00
    Agree2959.62.24*2.67*42.31.0530.01.2923.80.9839.70.95
Sharing more frequently with friends or family members
    No difference/disagree4264.51.001.0035.91.001.0021.11.001.0020.91.00NS31.91.001.00
    Agree17714.33.57***3.19**57.72.44***2.25***44.63.00***2.69***31.81.77**58.83.04***2.41***
Frequency talking with family members/friends about the tsunami (per day)
    <11934.71.00NS32.31.00NS19.81.00NS21.41.0031.11.001.00
    1–32947.21.5745.41.74**30.41.77*26.61.3445.61.86**1.58*
    ⩾411612.22.82*51.32.21**35.72.25**22.41.0639.71.461.10