Table 6 Multivariate Logistic regression model for prediction of DD vs. children without delay: gross motor delay (GM), fine motor-adaptive delay (FMA), Language delay (L), Personal-social delay (PS), and Children with at least one delay

Sex (male is the base)

1.22

0.9–1.50

1.47

1.20–1.81*

1.84

1.59–2.14*

1.37

1.17–1.62**

1.60

1.42–1.80**

Locality (urban is the base)

1.14

0.9–1.47

1.30

1.02–1.65*

1.14

0.95 – 1.35

1.24

1.02–1.50*

1.13

.98–1.30

Social level (middle is the base)

1.35

1.08–1.67*

1.30

1.02–1.65*

1.24

1.06–1.45*

1.59

1.35–1.87**

1.48

1.28 -1.71**

Geographical distribution: (Lower, Upper, and Frontiers) are the base

 Lower

0.64

0.50–0.91*

1.199

0.85–1.69

0.65

0.52–0.82*

0.80

0.66 -0.97*

0.82

0.71–0.94**

 Upper

1.0

0.70–1.35

1.117

0.79–1.59

0.59

0.47–0.74*

0.66

0.47 -0.91*

0.75

0.60–0.94*

 Frontiers

0.69

0.453–1.03

1.058

0.71–1.60

0.54

0.41–0.72*

1.07

0.83 -1.38

1.38

1.15–1.67**

Maternal education: University and above is the base

 University and above

0.59

0.47–0.74*

0.60

0.40–0.74*

0.82

0.70–0.96*

0.93

0.70–1.23

0.83

0.68–1.03

Paternal education: Less education is the base

 Less educated

1.83

1.21–2.77*

1.45

0.98–2.16

1.57

1.20–2.05

1.60

1.19–2.17**

1.55

1.25–1.92**

Maternal problems are the base

 Mothers had any health problems during pregnancy

1.95

1.43–2. 67**

1.91

1.40–2.60*

1.74

1.39–2.19**

1.99

1.57–2.51**

1.73

1.44–2.07**

Perinatal problems are the base

 Baby’s weight is less than 2.5 kg at birth

2.63

1.91–3.63**

2.45

1.77–3.39**

1.74

1.35–2.24**

1.62

1.23–2.14**

2.06

1.69–2.52**

 Children suffered from cyanosis after birth

2.94

1.83–4.72**

1.94

1.16–3.27**

1.99

1.33–2.95**

1.39

.88–2.19

1.77

1.26–2.49**

 Children suffered from any convulsions

3.76

2.40–5.89**

2.56

1.58–4.15**

2.34

1.62–3.40**

2.79

1.88–4.12**

2.68

1.97–3.64**

 Child was admitted to an incubator for more than two days

1.28

.92–1.79

1.54

1.13–2.10*

1.45

1.16–1.81*

1.77

1.40–2.23**

1.37

1.14–1.64**

Constant

0.007

0.001

0.021

0.012

0.001