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Table 3.

Comparison of observed numbers of coinfections with Poisson expected frequencies (n = 1,129)

Number of Infections	Overall			HIV (−)			HIV (+)
	Observed (expected)	O/E (95% CI)*	Observed (expected)	O/E (95% CI)*	Observed (expected)	O/E (95% CI)*
0	702 (594.53)	1.18 (1.09-1.27)	561 (508.95)	1.10 (1.01-1.19)	141 (98.62)	1.42 (1.21-1.68)
1	257 (381.27)	0.67 (0.59-0.76)	196 (263.41)	0.74 (0.64-0.85)	61 (101.13)	0.60 (0.49-0.77)
2	96 (122.25)	0.78 (0.64-0.95)	59 (68.19)	0.86 (0.67-1.11)	37 (51.85)	0.71 (0.52-0.98)
3	41 (26.13)	1.56 (1.15-2.13)	25 (11.75)	2.12 (1.43-3.14)	16 (17.72)	0.90 (0.55-1.47)
≥4	33 (4.77)	6.91 (4.76-9.71)^†	13 (1.67)	7.78 (4.14-13.31)^†	20 (5.64)	3.54 (2.16-5.47)^†
Total	1,129 (1,129)		854 (854)		275 (275)
χ² (4 df)	786.836		115.630	—	589.277
P	P < 0.001		P < 0.001		P < 0.001

Number of Infections	Overall			HIV (−)			HIV (+)
	Observed (expected)	O/E (95% CI)*	Observed (expected)	O/E (95% CI)*	Observed (expected)	O/E (95% CI)*
0	702 (594.53)	1.18 (1.09-1.27)	561 (508.95)	1.10 (1.01-1.19)	141 (98.62)	1.42 (1.21-1.68)
1	257 (381.27)	0.67 (0.59-0.76)	196 (263.41)	0.74 (0.64-0.85)	61 (101.13)	0.60 (0.49-0.77)
2	96 (122.25)	0.78 (0.64-0.95)	59 (68.19)	0.86 (0.67-1.11)	37 (51.85)	0.71 (0.52-0.98)
3	41 (26.13)	1.56 (1.15-2.13)	25 (11.75)	2.12 (1.43-3.14)	16 (17.72)	0.90 (0.55-1.47)
≥4	33 (4.77)	6.91 (4.76-9.71)^†	13 (1.67)	7.78 (4.14-13.31)^†	20 (5.64)	3.54 (2.16-5.47)^†
Total	1,129 (1,129)		854 (854)		275 (275)
χ² (4 df)	786.836		115.630	—	589.277
P	P < 0.001		P < 0.001		P < 0.001

NOTE: Values in boldface are statistically significant at P < 0.05.

Poisson 95% confidence intervals.

Exact Poisson 95% confidence intervals.