Trends in Immunization Completion and Disparities in the Context of Health Reforms: The case study of Tanzania

Table 4 Crude and adjusted odd ratios for completion of immunization by household characteristics and wealth by year.

Characteristic	1990		1996		2005
	Crude OR	Adjusted	Crude OR	Adjusted*	Crude	Adjusted*
Residence
Rural	1	1	1.0	1.0	1.0	1.0
Urban	2.7 (1.9-3.9)	2.3 (1.6-3.4)	1.5 (1.2-2.2)	1.3 (0.8-1.9)	1.8 (1.3-2.4)	1.4 (1.0-1.9)
Age group
< 30	1	1	1.0	1.0	1.0	1.0
30-39	0.9 (0.6-1.2)	0.9 (0.6-1.4)	0.93 (0.7-1.3)	0.9 (0.6-1.4)	1.21 (0.8-1.5)	1.2 (0.8-1.7)
40-49	1.0 (0.7-1.4)	1.1 (0.7-1.8)	0.9 (0.6-1.3)	0.8 (0.5-1.3)	0.9 (0.6-1.2)	0.9 (0.6-1.4)
50+	0.9 (0.6-1.2)	1.2 (0.8-1.80	0.8 (0.4-1.2)	0.8 (0.5-1.4)	0.7 (0.53-1.01)	0.9 (0.6-1.3)
Head of household
Male	1	1	1.0	1.0	1.0	1.0
Female	1.1 (0.8-1.5)	1.2 (0.8-1.7)	0.9 (0.6-1.3)	0.9 (0.6-1.4)	0.9 (0.6-1.2)	0.8 (0.6-1.2)
Number of children under five years
Less than 2	1	1	1.0	1.0	1.0	1.0
More than 2	1.6 (1.3-2.1)	1.4 (1.1-1.9)	1.3 (0.9-1.7)	1.3 (0.9-1.8)	1.5 (1.2-2.0)	1.4 (1.0-1.8)
Number of people in the household
< 4	1	1	1.0	1.0	1.0	1.0
≥3	0.8 (0.6-1.01)	1.0 (0.7-1.4)	1.2 (0.9-1.6)	1.1 (0.7-1.6)	1.3 (0.9-1.6)	1.1 (0.8-1.4)
Household head education (years)
7 years or more in school	1	1	1.0	1.0	1.0	1.0
Not educated	0.5 (0.4-0.7)	0.6 (0.5-0.7)	0.5 (0.4-0.7)	0.5 (0.3-0.7)	0.4 (0.3-0.5)	0.4 (0.3-0.5)
Wealth quintiles
Most poor	1	1	1.0	1.0	1.0	1.0
Very poor	1.3 (0.9-1.7)	1.3 (0.8-1.8)	0.83 (0.5-1.3)	0.96 (0.5-1.9)	1.7 (1.2-2.3)	1.5 (1.1-2.1)
Poor	0.8 (0.6-1.3)	0.6 (0.3-1.2)	0.8 (0.5-1.9)	0.8 (0.4-1.5)	1.7 (1.2-2.3)	1.4 (1.0-2.0)
Less poor	1.4 (1.0-1.9)	1.2 (0.7-2.0)	0.8 (0.5-1.2)	0.7 (0.3-1.9)	2.2 (1.6-3.1)	1.8 (1.3-2.6)
Least poor	2.9 (1.9-4.5)	1.7 (0.8-3.5)	1.1 (0.7-1.7)	1.0 (0.5-1.9)	3.2 (2.1-4.6)	1.9 (1.1-3.7)
P value for trend	< 0.001	0.06	0.47	0.02	< 0.001	< 0.001

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