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Table 2 Three stepsb multivariable predictors of performance on five domains of child development

From: Developmental performance of hospitalized severely acutely malnourished under-six children in low- income setting

 

Covariates

Developmental Outcomes

 

eAge

Age2

fNutri

Nutr#Age

Nutri#Age2

cFine motor

dIRR

1.036

0.9997

0.7556

1.002

–

95%CI

[1.032, 1.039]

[0.9996, 0.9998]

[0.7094, 0.8047]

[1.001, 1.004]

–

p-value

0.000

0.000

0.000

0.008

–

cGross motor

dIRR

1.042

0.9996

0.7263

–

–

95%CI

[1.038, 1.046]

[0.9996, 0.9997]

[0.7091, 0.7438]

–

–

p-value

0.000

0.000

0.000

–

–

cLanguage

dIRR

1.050

0.9996a

0.9778

0.9829

1.000a

95%CI

[1.046, 1.054]

[0.9996, 0.9997]

[0.8610, 1.110]

[0.9753, 0.9906]

[1.000, 1.000]

p-value

0.000

0.000

0.730

0.000

0.000

cPersonal social

dIRR

1.053

0.9995

0.7015

1.006

–

95%CI

[1.049, 1.058]

[0.9994, 0.9996]

[0.6542, 0.7521]

[1.004, 1.007]

–

p-value

0.000

0.000

0.000

0.000

–

cSocial-emotional behavior

dIRR

1.050

0.9995

3.087

0.9482

1.001a

95%CI

[1.034, 1.067]

[0.9992, 0.9997]

[2.236, 4.261]

[0.9284, 0.9683]

[1.000, 1.001]

p-value

0.000

0.000

0.000

0.000

0.000

  1. a the estimate lies within the confidence interval when it is in five decimal digits
  2. b Model in Step I analysis comprises age, sex and nutritional status of child, maternal religion; in step II, only significant terms in step I, age as a quadratic term, interactions of nutritional status with maternal religion, with age as a linear term and as a quadratic term were added to step I model; and in step III, non-significant terms in Step II model were dropped beginning from a non-significant interaction between nutritional status and age as a quadratic term
  3. c Multivariable Poisson regression model was fitted; d Incident rate ratio, analogous to odds ratio, is obtained by exponentiating the coefficient in the Poisson model; e age of a child (in months); Age2, age squared
  4. f ‘Nutri, nutritional status of child’: severely acute malnourished, coded as 1, ‘non-malnourished’ coded as 0 is a reference