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. 2009 Apr 9;338:b1211. doi: 10.1136/bmj.b1211

Table 3.

 Sex ratios at birth by birth order for November 2004 to October 2005

No Total (n=161 109) First order (n=101 399) Second order (n=51 017) Third order (n=6996)
Total 161 109 120 (119 to 121) 108 (107 to 110) 143 (141 to 146) 157 (149 to 164)
City* 36 882 115 (113 to 117) 110 (107 to 113) 138 (132 to 144) 146 (127 to 168)
Town† 27 254 120 (118 to 122) 111 (108 to 115) 137 (131 to 143) 165 (143 to 190)
Rural‡ 96 973 123 (121 to 124) 107 (105 to 108) 146 (143 to 149) 157 (148 to 165)
Beijing 1 207 118 (105 to 131) 115 (102 to 128) 123 (92 to 155) 275 (85 to 1071)
Tianjin 887 120 (104 to 136) 110 (94 to 128) 155 (119 to 192) 101 (47 to 414)
Hebei 10 774 119 (115 to 124) 110 (105 to 116) 134 (126 to 143) 147 (118 to 185)
Shanxi 4 641 117 (110 to 125) 109 (101 to 117) 128 (116 to 142) 160 (119 to 209)
Inner Mongolia 2 781 117 (108 to 117) 113 (103 to 122) 134 (113 to 156) 94 (54 to 187)
Liaoning 3 772 109 (103 to 115) 104 (97 to 112) 126 (111 to 143) 123 (71 to 199)
Jilin 2 639 109 (101 to 118) 107 (97 to 117) 112 (98 to 128) 160 (87 to 278)
Heilongjiang 3 659 110 (104 to 117) 113 (105 to 122) 101 (88 to 115) 164 (107 to 295)
Shanghai 1 427 120 (108 to 132) 111 (99 to 123) 176 (136 to 220) 113 (34 to 292)
Jiangsu 8 139 126 (121 to 131) 111 (106 to 117) 192 (174 to 211) 188 (138 to 268)
Zhejiang 6 048 113 (108 to 119) 109 (102 to 115) 122 (111 to 134) 170 (117 to 241)
Anhui 8 583 132 (127 to 138) 107 (101 to 113) 190 (176 to 205) 227 (178 to 304)
Fujian 4 551 126 (119 to 134) 113 (105 to 121) 168 (149 to 188) 148 (100 to 234)
Jiangxi 6 337 137 (131 to 144) 108 (101 to 116) 178 (164 to 194) 206 (168 to 257)
Shandong 12 951 113 (110 to 117) 109 (105 to 114) 120 (112 to 127) 163 (127 to 206)
Henan 10 992 126 (121 to 131) 104 (99 to 110) 166 (156 to 177) 129 (108 to 154)
Hubei 6 034 128 (122 to 135) 113 (107 to 120) 170 (154 to 185) 184 (132 to 270)
Hunan 7 910 128 (122 to 134) 112 (106 to 118) 155 (144 to 168) 181 (146 to 226)
Guangdong 11 164 120 (116 to 125) 108 (103 to 113) 146 (136 to 157) 167 (141 to 201)
Guangxi 7 505 120 (115 to 125) 105 (99 to 111) 137 (126 to 148) 160 (137 to 190)
Hainan 1 364 122 (110 to 135) 111 (97 to 126) 138 (117 t o 157) 142 (98 to 212)
Chongqing 2 448 111 (103 to 120) 108 (97 to 120) 115 (101 t o 130) 127 (89 to 177)
Sichuan 9 076 116 (112 to 121) 106 (101 to 112) 129 (120 to 139) 141 (121 to 163)
Guizhou 5 771 128 (121 to 135) 102 (95 to 109) 168 (152 to 185) 208 (171 to 255)
Yunnan 7 633 113 (108 to 118) 106 (100 to 113) 119 (110 to 187) 137 (115 to 166)
Tibet 509 105 (88 to 123) 105 (81 to 129) 101 (69 to 131) 119 (75 to 185)
Shaanxi 3 689 132 (124 to 141) 117 (108 to 127) 168 (149 to 194) 185 (126 to 297)
Gansu 3 215 116 (109 to 125) 99 (91 to 109) 147 (130 to 166) 139 (107 to 188)
Qinghai 812 117 (102 to 133) 107 (90 to 125) 124 (98 to 150) 188 (108 to 368)
Ningxia 1 078 111 (99 to 126) 106 (90 to 122) 128 (105 to 152) 95 (64 to 139)
Xinjiang 3 514 109 (102 to 117) 102 (94 to 111) 120 (105 to 136) 127 (104 to 156)

*Area with more than 100 000 non-agricultural population.

†Population of at least 20 000, where non-agricultural population exceeds 10%.

‡More than 90% agricultural workers.