2020,Vital statistics of Japan,, Volume 2 Foetal mortality Table 5-2 Foetal deaths by sexCperiod of gestationCtype of extraction and legitimacy status:JapanC2020 (Period of gestation (early-normal-mature)) Period of gestation,,,Total,,,Spontaneous,,,Artificial,, ,,,Total,Born in wedlock,Born out of wedlock,Total,Born in wedlock,Born out of wedlock,Total,Born in wedlock,Born out of wedlock Total, ,Total,17278,11939,5339,8188,7436,752,9090,4503,4587 , ,Male,7434,5264,2170,3556,3254,302,3878,2010,1868 , ,Female,3611,2702,909,1724,1586,138,1887,1116,771 , ,Unspecified,6233,3973,2260,2908,2596,312,3325,1377,1948 Pre-term,Under 37 completed weeks,Total,16810,11498,5312,7720,6995,725,9090,4503,4587 , ,Male,7198,5042,2156,3320,3032,288,3878,2010,1868 , ,Female,3384,2487,897,1497,1371,126,1887,1116,771 , ,Unspecified,6228,3969,2259,2903,2592,311,3325,1377,1948 ,Under 22 completed weeks,Total,15160,9952,5208,6071,5450,621,9089,4502,4587 , ,Male,6388,4279,2109,2510,2269,241,3878,2010,1868 , ,Female,2602,1756,846,716,641,75,1886,1115,771 , ,Unspecified,6170,3917,2253,2845,2540,305,3325,1377,1948 ,22-27 completed weeks,Total,859,802,57,858,801,57,1,1,- , ,Male,388,363,25,388,363,25,-,-,- , ,Female,422,395,27,421,394,27,1,1,- , ,Unspecified,49,44,5,49,44,5,-,-,- ,28-31 completed weeks,Total,325,302,23,325,302,23,-,-,- , ,Male,176,165,11,176,165,11,-,-,- , ,Female,144,133,11,144,133,11,-,-,- , ,Unspecified,5,4,1,5,4,1,-,-,- ,32-36 completed weeks,Total,466,442,24,466,442,24,-,-,- , ,Male,246,235,11,246,235,11,-,-,- , ,Female,216,203,13,216,203,13,-,-,- , ,Unspecified,4,4,-,4,4,-,-,-,- Term,37-41 completed weeks,Total,460,439,21,460,439,21,-,-,- , ,Male,234,221,13,234,221,13,-,-,- , ,Female,222,214,8,222,214,8,-,-,- , ,Unspecified,4,4,-,4,4,-,-,-,- Post-term,42 completed weeks and over,Total,2,1,1,2,1,1,-,-,- , ,Male,-,-,-,-,-,-,-,-,- , ,Female,2,1,1,2,1,1,-,-,- , ,Unspecified,-,-,-,-,-,-,-,-,- Unspecified, ,Total,6,1,5,6,1,5,-,-,- , ,Male,2,1,1,2,1,1,-,-,- , ,Female,3,-,3,3,-,3,-,-,- , ,Unspecified,1,-,1,1,-,1,-,-,-