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Table 2 Factors associated with mothers' participation at follow-up

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

 

Participants

(N = 493)b

Non-participants

(N = 96)b

Adjusted for group OR

(95% CI)

Multivariable modelc OR

(95% CI)

Child attended clinic in 1997

464 (94.1)

73 (76.0)

5.0 (2.8–9.2) ***

6.7 (3.1–14.4) ***

Child participated at follow-up

477 (96.8)

40 (42.1)

41.6 (21.7–79.7) ***

61.3 (28.8–130.5) ***

Background characteristics a

    

Evacuee status

254 (51.5)

40 (41.7)

--

--c

Female child

254 (51.5)

51 (53.1)

0.9 (0.6–1.5)

--c

Child in utero at time of accident

149 (30.2)

29 (30.2)

1.0 (0.6–1.6)

--c

Standard of living, mean ± SDd

3.8 ± 1.6

3.9 ± 1.7

1.0 (0.8–1.2)

--c

University graduate (either parent)

149 (30.3)

34 (35.4)

0.9 (0.5–1.4)

--c

Child well-being a

    

No medical checkup in past year

326 (66.1)

54 (56.3)

2.1 (1.3–3.5) **

2.1 (1.1–3.9) *

≥ 2 colds in past year

363 (73.9)

65 (67.7)

1.3 (0.8–2.1)

--c

P-CSI (mother report), mean ± SDd

19.1 ± 14.3

16.2 ± 13.9

1.2 (0.9–1.5)

--c

Childhood behavioral problems

103 (20.9)

15 (15.6)

1.4 (0.8–2.6)

--c

CSI (child self-report), mean ± SDd

16.6 ± 15.5

16.9 ± 20.3

1.0 (0.8–1.2)

--c

Days absent from school

    

   None

156 (33.3)

35 (39.8)

1.00

--c

   1–10 days

214 (45.7)

40 (45.5)

1.2 (0.7–2.0)

--c

   > 10 days

98 (20.9)

13 (14.8)

1.6 (0.8–3.3)

--c

  

linear trend

χ2(1) = 2.0

 

Mother well-being a

    

Rate health as poor

155 (31.5)

25 (26.0)

1.2 (0.7–2.0)

--c

Illness worry, mean ± SDd

3.3 ± 2.2

2.8 ± 2.0

1.3 (1.0–1.6) *

--c

SCL-90 GSI, mean ± SDd

0.8 ± 0.5

0.6 ± 0.4

1.4 (1.1–1.8) **

1.6 (1.1–2.3) *

Mother's Chornobyl risk perception a

    

Diagnosed with Chornobyl-related illness

192 (38.9)

23 (24.0)

1.9 (1.1–3.2)*

2.9 (1.4–5.9) **

Child's health perceived as very affected by Chornobyl

224 (45.4)

35 (36.5)

1.3 (0.8–2.1)

--c

Distrust of authorities, mean ± SDd

3.1 ± 0.6

3.2 ± 0.5

0.9 (0.7–1.1)

--c

  1. a All variables are based on maternal reports except the child-rated CSI and the school record information on absences. No interactions between these variables and evacuee 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 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.
  5. * p < 0.05; ** p < 0.01; *** p < 0.001
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BMC Medical Research Methodology

ISSN: 1471-2288

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