Table 4. Trend in Nepal's national estimate of maternal mortality rate, adjusted for respondent characteristics using Poisson regression.

Adjusted for:	Incidence rate ratio (95% Confidence interval)
(reference)a	2.69 (1.8,4.0)**
education	2.15 (1.4,3.3)**
wealth quintile	1.92 (1.2,3.0)*
rurality	2.61 (1.8,3.8)**
eco zone	2.72 (1.9,4.0)**

Data source: Nepal demographic and health surveys 1996 and 2006.

^amaternal mortality rate from the later survey was used as the reference, so the incidence rate ratio in the earlier survey was 2.69 times greater.

**denotes statistical significance at p<0.001;

*p<0.01.