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Table 2 Proportional hazards assumption test for individual-, household- and community-level variables

From: Neonatal mortality in the central districts of Ghana: analysis of community and composition factors

Variable

Chi-squared value

Global p-value

Sex

1.44

0.230

Birth order

0.98

0.322

Educational level

0.76

0.384

Tetanus toxoid

0.10

0.753

Gravidity

2.89

0.089

Maternal age at delivery

5.50

0.019a

Previous adverse pregnancies

0.02

0.879

Place of delivery

20.35

< 0.001a

Gestational age

0.36

0.550

Household wealth

0.00

0.994

Crowding

0.00

0.986

Ethnic heterogeneity

0.00

0.980

Average distance to the nearest health facility

0.30

0.584

Average travel time to water source

0.01

0.908

Poverty

0.23

0.631

Sanitation

0.26

0.611

Water safety

0.02

0.890

Community education

0.19

0.660

  1. aStatistically significant and therefore violates the proportional hazards assumption