Promoting contraceptive use among unmarried female migrants in one factory in Shanghai: a pilot workplace intervention

Table 4 Change in sexual behaviour in the last three months

Sex related behaviour	Baseline			Follow-up
	Intervention (%)	Control (%)	P	Intervention (%)	Control (%)	P
Have had sex with 3 months	44/311 (14)*	35/231 (15)**	0.743	27/239 (11)^†	15/159 (9) ^‡	0.553
Have used any contraception in the last three months^#	31/44 (70)	31/35 (89)	0.052	25/27 (93)^⊕	13/15 (87)	0.531
Have used condoms in the last 3 months^#	18/44 (41)	17/35 (49)	0.496	19/27 (70)^⊕	6/15 (40)	0.055

*29 non-response; **27 non-response; † 18 non-response; ‡ 9 non-response;
# denominator is the number of women who have ever had sex within 3 months.
⊕ intervention group, baseline compared to follow up, chi square test, p < 0.05.

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