Appendix Table 3. Factors associated with other psychological variables (stepwise logistic regression model) (survey 2 data)*

OR (95% CI)

Having trouble falling/ staying asleep (yes = 1)

Having a perceived worsened sexual life (yes = 1)

Having a psychosomatic response (yes = 1)

Having a perceived worsened social life (yes = 1)

Having a perceived need for a psychiatrist or psychologist (yes = 1)

Having a perceived overall effect on mental health (yes = 1)

Stage 1 (Stepwise selection of sociodemographic factors)

   Female (ref = male)

NS

NS

NS

1.59† (1.19–2.14)

NS

1.62† (1.22–2.15)

Age group, y (ref = 18–24)

   25–34

NS

9.96‡ (1.26–94.50)

NS

2.02† (1.25–3.28)

NS

1.64‡ (1.07–2.53)

   35–49

NS

12.58‡ (1.67–94.50)

NS

2.78† (1.80–4.29)

NS

NS

   >50

NS

18.26† (2.35–141.68)

NS

2.32† (1.41–3.82)

NS

1.87† (1.19–2.95)

Education level (ref = 9 y)

   10–11 y

NS

NS

NS

NS

NS

NS

   Pre-university

NS

NS

NS

NS

NS

NS

   University or higher

0.42† (0.23–0.76)

NS

NS

NS

NS.

NS

Marital status (ref = single)

   Currently married/cohabited

NS

NS

NS

NS

NS

NS

   Divorced or widow

5.38† (1.63–17.73)

NS

NS

NS

NS

NS

Employment status (ref = full time)

   Part time

NS

NS

NS

NS

NS

NS

   Unemployed

2.98† (1.60–5.56)

NS

NS

NS

NS

NS

   Housewife

2.28† (1.59–4.14)

NS

2.77† (1.43–5.39)

NS

NS

NS

   Student

NS

NS

NS

NS

NS

NS

   Retired or other

NS

NS

NS

NS

NS

NS

Religion (ref = no religion)

   Christian

NS

NS

NS

NS

NS

NS

   Buddhist

NS

2.91† (1.31–6.46)

2.57‡ (1.21–5.46)

NS

NS

NS

   Other

NS

NS

NS

NS

NS

NS

Stage 2 (Stepwise selection of psychological variables adjusting for univariately significant sociodemographic factors by using "enter" syntax )

Perceived severity of SARS (ref = moderate  to not severe)

   Severe or very severe

–

–

–

–

–

2.20† (1.11–4.35)

Feel apprehensive because of SARS (ref = moderately to strongly disagree)

   Agree or strongly agree

2.32† (1.38–3.89)

–

–

–

–

1.90† (1.35–2.68)

Felt helpless because of SARS (ref = moderately to strongly disagree)

   Agree or strongly agree

1.75‡ (1.11–2.75)

–

–

–

–

–

Worried about oneself or family member contracting SARS (ref = moderately worried to not worried)

   Worried or very much worried

–

–

2.25† (1.22–4.14)

–

–

2.10† (1.53–2.89)

Increased work stress because of SARS (ref = same to much decreased)

   Increased or much increased

2.67† (1.07–2.62)

–

2.57† (1.41–4.70)

1.92† (1.36–2.70)

–

–

Increased family stress because of SARS (ref = same to much decreased)

   Increased or much increased

–

–

–

1.50‡ (1.03–2.18)

2.39‡ (1.17–4.90)

1.56‡ (1.06–2.30)

Increased financial stress because of SARS (ref = same to much decreased)

   Increased or much increased

–

1.96‡ (1.05–3.67)

–

–

–

1.45‡ (1.04, 2.04)

Change in social life because of SARS (ref = same to much improved)

   Worse or worse

2.24† (1.43–3.49)

2.24‡ (1.12–4.48)

–

NA

–

1.78† (1.26–2.53)

Change in family members' emotional states (ref = same to much improved)

   Worse or much worse

1.68‡ (1.07–2.62)

2.78‡ (1.43–5.37)

–

5.56† (3.84–8.05)

–

2.25† (1.51–3.35)

*OR, odds ratio; CI, confidence interval; ref, referent; NS, not selected in stage 1 stepwise logistic regression analysis; SARS, severe acute respiratory syndrome; –, not selected in stage 2 stepwise logistic regression analysis; NA, not applicable. The variable "feel horrified because of SARS" was considered by the stage 2 stepwise analysis, but was not selected by any of the 6 models.

†p < 0.01.

‡p < 0.05.