Table 46. --Pregnancy rates, by area and month of collection, and chi-square value 1 



of pregnancy rates, between years, 1958-66 



Feb. ■ 

 Apr. 



60. 5 

 (38) 



92.5 

 (40) 



95.3 

 (43) 



93. 8 

 (226) 



92. 1 

 (76) 



Jan. 

 Apr. 



60. 

 (95) 



82.2 

 (107) 



80. 5 

 (128) 



89. 7 

 (485) 



85. 1 

 (288) 



Jan. - 

 Mar. 



24. 4 

 (41) 



82. 9 

 (41) 



77. 4 

 (62) 



88. 8 

 (410) 



77. 5 

 (178) 



Feb. 

 Apr. 



Southeast Alaska 



91.9 

 (74) 



92. 1 

 (51) 



<0. 001 >0. 98 



84. 3 

 (115) 



78. 4 

 (74) 



May- 

 June 



Apr. 

 May 



GuLf of Alaska 



94. 1 

 (34) 



83. 9 

 (31) 



88.2 

 (228) 



90. 8 

 (412) 



84. 5 

 (71) 



82. 2 

 (169) 



Western Alaska 



87. 8 

 (49) 



>14 



96.7 

 (91) 



82. 1 

 (28) 



June- 

 Aug. 



57. 9 

 (38) 



86.2 

 (29) 



88, 5 

 (26) 



92. 9 

 (183) 



69. 1 

 (55) 



50 



