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Table 1 Distribution of circumcised women according to 5-year birth cohort by background characteristics

From: Cohort analysis of the state of female genital cutting in Nigeria: prevalence, daughter circumcision and attitude towards its discontinuation

Background variables 5-year cohort according to year of birth
1959–1963 1964–1968 1969–1973 1974–1978 1979–1983 1984–1988 1989–1993 1994–1998 1999–2003
n (%) n (%) n (%) n (%) n (%) n (%) n (%) n (%) n (%)
Total 966(56.3) 1297(48.7) 770(45.5) 683(39.7) 686(34.2) 676(31.2) 708(28.3) 596(25.5) 669(28.4)
Religion 73.2* 170.6* 85.6* 42.9* 13.7** 13.8** 4.4ns 4.2ns 25.2*
 Christian 653(62.7) 873(59.7) 556(54.6) 431(46.7) 403(37.3) 377(34.9) 353(30.4) 246(24.5) 253(23.8)
 Islam 263(43.0) 394(34.2) 210(31.7) 250(31.8) 282(31.0) 296(27.6) 351(26.6) 350(26.4) 415(32.6)
 Others 50(78.1) 30(62.5) 4(36.4) 2(14.3) 1(6.7) 3(25.0) 4(23.5) 0(0.0) 1(7.1)
Ethnicity 304.5* 548.3* 351.6* 244.6* 233.9* 227.8* 238.7* 150.5* 130.9*
 Hausa/F 103(35.6) 234(30.0) 117(27.3) 144(26.7) 165(27.2) 203(27.0) 247(26.3) 268(27.2) 317(33.7)
 Igbo 317(80.5) 366(74.7) 318(67.7) 189(53.7) 196(48.8) 199(46.9) 205(44.0) 116(30.4) 142(32.0)
 Yoruba 319(76.1) 422(80.1) 213(75.8) 221(71.3) 205(61.0) 178(55.1) 156(52.2) 143(45.7) 135(41.5)
 Others 227(36.9) 275(31.8) 122(23.8) 129(24.8) 120(18.2) 96(14.5) 100(12.6) 69(10.5) 75 (11.7)
Region 400.6* 648.3* 388.7* 254.7* 54.9* 240.7* 239.2* 160.2* 136.0*
 North Cent 88(41.9) 93(38.9) 53(27.5) 68(34.2) 70(24.6) 68(26.6) 72(20.9) 60(21.1) 55(21.1)
 North East 9(4.5) 20(5.9) 21(8.1) 15(5.2) 28(7.4) 28(6.7) 52(9.3) 46(8.4) 53(11.9)
 North West 104(42.3) 230(33.9) 98(30.6) 134(34.4) 141(35.1) 170(33.5) 190(31.9) 220(33.6) 268(39.1)
 South East 287(82.9) 338(77.7) 292(68.9) 170(56.3) 179(53.8) 171(51.5) 183(49.1) 108(33.1) 124(33.1)
 South South 183(58.7) 212(46.4) 106(46.3) 117(44.2) 85(30.8) 7 (23.7) 67 (22.5) 38 (17.5) 50(18.6)
 South West 295(73.0) 404(78.6) 200(75.2) 179(63.9) 183(54.8) 164(48.8) 144(44.4) 124(39.9) 119(37.8)
Residence 0.064ns 78.3* 46.8* 54.9* 41.2* 34.0* 20.2* 5.0*** 0.016ns
 Urban 348(55.9) 693(58.3) 434(54.2) 381(49.4) 390(41.4) 383(37.4) 364(32.9) 271(27.9) 312(28.6)
 Rural 618(56.5) 604(41.0) 336(37.7) 302(31.8) 296(27.8) 293(25.7) 344(24.7) 325(23.8) 357(28.3)
  1. Bold values shows Chi square value of each variable
  2. n number of cases of females circumcised within the group; *p < 0.001; **p < 0.01; ***p<0.05; ns not statistically significant at 5%