Skip to main content

Advertisement

Table 3 Factors for unintended pregnancy among graduate students active in premarital sex

From: A blind area of family planning services in China: unintended pregnancy among unmarried graduate students

Factors Male students (n=1831) Female students (n=1059)
Total n (%) IOPan (%) CORb(95% CI) Total n (%) IOPan (%) CORb(95% CI)
Educational levels
Master candidate 1467(80.1) 296(20.2) 1 885(83.6) 148(16.7) 1
Doctoral candidate 364(19.9) 77(21.2) 1.06(0.80,1.41) 174(16.4) 40(23.0) 1.49(1.01,2.22)
Discipline
nonmedical 1434(78.3) 299(20.9) 1 818(77.2) 137(16.7) 1
medical 397(21.7) 74(18.6) 0.87(0.66,1.15) 241(22.8) 51(21.2) 1.33(0.93,1.91)
Whether having a steady lover
Yes 1616(88.3) 302(18.7) 1 979(92.4) 156(15.9) 1
No 215(11.7) 71(33.0) 2.13(1.56,2.94) 80(7.6) 32(40.0) 3.57(2.17,5.56)
Disposable income per month
<400(yuan) 360(19.7) 79(21.9) 1.13(0.86,1.58) 184(17.4) 47(25.5) 1.90(1.26,2.87)
400~899 (yuan) 792(43.3) 154(19.4) 1 503(47.5) 77(15.3) 1
≥900(yuan) 679(37.1) 140(20.6) 1.08(0.83,1.39) 372(35.1) 64(17.2) 1.15(0.80,1.65)
Age at first sexual intercourse
<20 years 346(18.9) 91(26.3) 1.53(1.16,2.00) 118(11.1) 39(33.1) 2.62(1.72,4.00)
≥20 years 1485(81.1) 282(19.0) 1 941(88.9) 149(15.8) 1
Whether knowing the conditions of conception
Yesc 1384(75.6) 243(17.6) 1 851(80.4) 134(15.7) 1
No 447(24.4) 130(29.1) 1.93(1.50,2.46) 208(19.6) 54(26.0) 1.88(1.31,2.69)
Whether knowing the use of the menstrual cycle for contraception
Yesd 1087(59.4) 199(18.3) 1 801(75.6) 130(16.2) 1
No 744(40.6) 174(23.4) 1.36(1.08,1.71) 258(24.4) 58(22.5) 1.50(1.06,2.12)
Whether thinking abortion endanger women's physical and mental health
Yes 1452(79.3) 280(19.3) 1 905(85.5) 148(16.4) 1
No 379(20.7) 93(24.5) 1.36(1.04,1.78) 154(14.5) 40(26.0) 1.80(1.20,2.68)
Whether thinking abortion endanger women’s future pregnancy
Yes 1645(89.8) 293(17.8) 1 1007(95.1) 166(16.5) 1
No 186(10.2) 80(43.0) 3.48(2.54,4.78) 52(4.9) 22(42.3) 3.72(2.09,6.62)
Whether use of condoms at first sexual intercourse
Yes 675(36.9) 119(17.6) 1 322(30.4) 27(8.4) 1
No 1156(63.1) 254(22.0) 1.24(1.02,1.51) 737(69.6) 161(21.8) 3.03(2.00,4.76)
Whether use of contraceptives at first sexual intercourse
Yes 1718(93.8) 341(19.8) 1 964(91.0) 168(17.4) 1
No 113(6.2) 32(28.3) 1.60(0.94,2.44) 95(9.0) 20(21.1) 1.26(0.75,2.13)
Frequency of use of contraception(methods were looked as effective for preventing pregnancy by responders)
Always use 548(29.9) 105(19.2) 1.71(0.83,3.55) 358(33.8) 48(13.4) 0.40(0.16,0.91)
Often/sometimes 1209(66.0) 259(21.4) 1.97(0.97,4.01) 676(63.8) 133(19.7) 0.63(0.26,1.53)
Never use 74(4.1) 9(12.2) 1 25(2.4) 7(28.0) 1
  1. a: incidence of pregnancy; b: crude odds ratio; c: students select all correct answers of conditions of conception but no wrong answers from list [detail of information was showed as below: What are the basic conditions for human conception? (Multiple choice) 1, healthy and active sperm can get into the vagina, and remain active force; 2, healthy and mature egg; 3, cervical mucus must be appropriate and conducive to sperm survival and penetration; 4, unobstructed reproductive tract to make the sperm and egg meeting; 5, sperm and egg must combined and formed a fertilized egg; 6, fertilized egg reach the uterine cavity timely, and the intrauterine environment is suitable for the growth and development of fertilized egg. 7, the sex intercourse between male and female. If a student chose answer 1,2,3,4,5 and 6 but no 7,.we considered it as ‘knowing the conditions of conception’, otherwise ‘no’]; d: students select right answers of calculating periodic abstinence and select the answer of periodic abstinence being not completely safe for contraception from list.