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Table 4 Estimates of decomposition analysis for the contribution of various explanatory variables for low birth weight children in India, 2015–16

From: Newborn low birth weight: do socio-economic inequality still persist in India?

Background characteristics

Coefficient

Elasticity

CCI

Absolute Contribution to CCI

Percentage contribution

Age at index birth

 ≤ 19 (Ref.)

     

 20–24

− 0.196***

− 0.009

0.004

0.000

0.4

 25–29

− 0.264***

− 0.003

0.073

0.000

2.6

 30–35

−0.286***

− 0.001

0.024

0.000

0.1

 35+

− 0.261**

− 0.001

0.024

0.000

0.1

Body mass index

 Underweight

0.239***

0.009

−0.219

− 0.002

21.9

 Normal (Ref.)

     

 Overweight and Obese

−0.072***

− 0.002

0.330

− 0.001

6.4

ANC

 No (Ref.)

     

 Partial

−0.285***

− 0.031

− 0.056

0.002

−18.6

 Full

−0.446***

− 0.016

0.231

− 0.004

39.4

Birth order and interval

 First (Ref.)

     

 2–3 & < 24 months

−0.118***

−0.002

− 0.046

0.000

−1.1

 2–3 & > 23 months

− 0.170***

−0.010

0.024

0.000

2.5

 4+ & < 24 months

−0.050

0.000

−0.397

0.000

−1.3

 4+ & > 23 months

−0.209***

−0.003

− 0.374

0.001

−11.6

Education

 No education (Ref.)

     

 Primary

0.036

0.001

−0.273

0.000

3.5

 Secondary

−0.094***

−0.005

0.091

0.000

5.1

 Higher

−0.308***

−0.006

0.579

−0.003

34.8

Caste

 Scheduled Caste

0.054**

0.000

−0.158

0.000

0.5

 Scheduled Tribe

−0.077***

0.001

−0.396

0.000

2.1

 Other Backward Class

−0.030

−0.002

0.036

0.000

0.6

 Others (Ref.)

     

Religion

 Hindu (Ref.)

     

 Muslim

−0.058**

−0.002

0.036

0.000

0.6

 Others

−0.233***

−0.001

0.221

0.000

1.4

Wealth index

 Poorest (Ref.)

     

 Poorer

−0.056**

−0.002

−0.463

0.001

−8.5

 Middle

−0.093***

−0.003

− 0.055

0.000

−1.7

 Richer

−0.089**

−0.003

0.376

−0.001

10.1

 Richest

−0.240***

−0.009

0.798

−0.007

73.7

Residence

 Urban (Ref.)

     

 Rural

−0.114***

−0.007

− 0.212

0.001

−15.7

Sex of the child

 Male (Ref.)

     

 Female

0.204***

0.013

−0.002

0.000

0.3

Region

 North (Ref.)

     

 Central

−0.080***

−0.004

−0.107

0.000

−4.5

 East

−0.394***

−0.015

− 0.340

0.005

−56.2

 Northeast

−0.682***

−0.003

− 0.220

0.001

−7.1

 West

−0.066**

−0.003

0.158

−0.001

5.8

 South

−0.175***

−0.008

0.202

−0.002

18.0

Source of drinking Water

 Not improved (Ref.)

     

 Improvedb

0.030

−0.002

0.005

0.000

0.1

Type of toilet facility

 Not improved (Ref.)

     

 Improvedc

0.003

−0.001

0.321

0.000

4.8

Type of cooking fuel

 Unclean (Ref.)

     

 Cleand

−0.039*

0.002

0.472

0.001

−8.1

Calculated CCI

   

−0.009

 

Actual CCI

   

−0.056

 

Residual

   

−0.047

 
  1. Ref. Reference category, CCI Concentration index
  2. ***p < 0.01; **p < 0.05; *p < 0.10
  3. aFull ANC defined as women who received four or more antenatal checks, at least two tetanus toxoid injection, and took iron and folic acid tablets or syrup for 100 days or more during their last live birth in the 5 years preceding the survey
  4. bInclude piped water, public taps, standpipes, tube wells, boreholes, protected dug wells and springs, rainwater, and community reverse osmosis (RO) plants
  5. cInclude flush/pour flush toilets to piped sewer systems, septic tanks, and pit latrines; ventilated improved pit (VIP)/biogas latrines; pit latrines with slabs; and twin pit/composting toilets
  6. dInclude Electricity, LPG/natural gas, biogas