Year
Mean
SD
No of countries
p
1990-1991
290.0
348.3
115
0.008
(0.038)
1997-1998
195.4
246.2
140
0.58 (significant)
Not significant difference
2007-2008
212.7
309.8
175
difference
Table 1:
Mean and SD of global maternal mortalities among 3 periods. The maternal mortality was significantly decreased between earlier and later periods.
