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Table 4 Factors associated with young adult's participation in the medical examination at time 2

From: Determinants of participation in a longitudinal two-stage study of the health consequences of the Chornobyl nuclear power plant accident

 

Examined

(N = 727)b

Not examined

(N = 126)b

Adjusted for group OR

(95% CI)

Multivariable modelc OR

(95% CI)

Had medical examination at time 1d

420 (93.5)

65 (84.4)

2.8 (1.3–5.7) **

--d

Mother participated at follow-up

683 (93.9)

90 (71.4)

6.4 (3.9–10.5) ***

6.1 (3.7–10.2) ***

Background characteristics at follow-up a

    

Group status

    

   Evacuee

220 (30.3)

45 (35.7)

--

--c

   Classmate control

229 (31.5)

32 (25.4)

--

--c

   Population control

278 (38.2)

49 (38.9)

--

--c

Female

389 (53.5)

52 (41.3)

1.9 (1.1–3.1) *

1.4 (0.9–2.2)

In utero at time of accident

235 (32.3)

46 (36.5)

0.8 (0.6–1.3)

--c

Standard of living, mean ± SDe

5.6 ± 1.4

5.9 ± 1.4

0.8 (0.7–1.0) *

0.8 (0.7–1.0)

Either parent graduated from university

277 (40.6)

30 (33.3)

1.3 (0.8–2.2)

--c

Young adult attends university

473 (65.1)

78 (61.9)

1.2 (0.8–1.7)

--c

Self-reported physical health at time 2 a

    

No medical checkup in past year

491 (67.8)

91 (72.2)

0.8 (0.5–1.2)

--c

≥ 2 colds in past year

429 (59.0)

72 (57.1)

1.1 (0.7–1.6)

--c

Illness worry, mean ± SDe

2.3 ± 1.9

1.9 ± 1.8

1.3 (1.0–1.6) *

--c

CSI, mean ± SDe

14.1 ± 11.0

10.8 ± 10.1

1.5 (1.2–1.8) **

--c

Days out of role, health-related impairment

153 (21.0)

16 (12.7)

1.9 (1.1–3.3) *

--c

Headache-related impairment

    

   None

417 (57.4)

91 (72.2)

1.0

--c

   < 1 month

235 (32.3)

30 (23.8)

1.7 (1.1–2.7) *

--c

   ≥ 1 month

75 (10.3)

5 (4.0)

3.4 (1.4–8.8) *

--c

  

linear trend

χ2 (1) = 6.7 **

 

Self-reported mental health at time 2 a

    

MDD/GAD (CIDI diagnosis)

118 (16.2)

9 (7.1)

2.5 (1.2–5.1) *

2.0 (1.0–4.2)

Young adults' risk perceptions at time 2 a

    

Diagnosed with a Chornobyl-related illness

166 (22.8)

18 (14.3)

1.9 (1.1–3.2) *

--c

Health perceived as very affected by Chornobyl

110 (15.1)

10 (7.9)

2.2 (1.1–4.4) *

--c

Discuss consequences of disaster often

92 (12.7)

4 (3.2)

4.6 (1.7–12.9) **

4.1 (1.4–11.7) **

Distrust of authorities, mean ± SDe

3.0 ± 0.6

3.1 ± 0.6

0.8 (0.6–0.9) **

0.8 (0.6–0.9) *

  1. a All variables are derived from the young adult's self-reports with the exception of parental education. No interactions between these variables and group status were found to be statistically significant.
  2. b Values are numbers (percentage, calculated from total column) except when noted.
  3. c The final multivariable model was obtained following a stepwise backwards likelihood-ratio elimination procedure.
  4. d This predictor is only applicable to the original cohort assessed in 1997 (N = 265 evacuees; N = 261 classmate controls) and thus was excluded from the multivariable model in order to retain the data from the population control group.
  5. e Continuous variables were standardized in logistic regression models so that the ORs may be interpreted as the odds of participation for a one standard deviation increase in the predictor.
  6. * p < 0.05; ** p < 0.01; *** p < 0.001
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BMC Medical Research Methodology

ISSN: 1471-2288

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