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Table 4
Tests of association between condom proficiency and condom problem scores and self-reported STIs over the previous 12 months
Source	Self-reported STI		Condom proficiency score	p	Condom problem score	p
Community	Yes	Mean	1.93	0.012	1.33	0.757
		N	44		45
		Standard deviation	2.07		1.82
	No	Mean	1.29		1.54
		N	267		274
		Standard deviation	1.84		2.40
	Total	Mean	1.38		1.51
		N	311		319
		Standard deviation	1.88		2.33
Clinic	Yes	Mean	1.77	0.032	1.97	0.001
		N	99		97
		Standard deviation	1.68		1.95
	No	Mean	1.36		1.26
		N	347		348
		Standard deviation	1.43		1.54
	Total	Mean	1.45		1.41
		N	446		445
		Standard deviation	1.50		1.67

Goodall et al. BMC Public Health 2012 12:747 doi:10.1186/1471-2458-12-747

Table 4