Table 1. 갈락토올리고당과 유산균 섭취한 6~24개월 군의 분변에서의 유산균 변화

		Prevalence (%)				Counts*
Bacterial strain	Months	Probitics	Placebo	RR(95% CI)	p value†	Probitics	Placebo	p value‡
L. rhamnosus GG	6	91.3	23.1	3.96(2.39－6.55)	<.001	7.47(6.17－8.18)	0(0－0)	<.001
	24	41.5	55.3	0.75(0.48－1.17)	.195	0(0－5.10)	3.54(0－4.99)	.571
L. rhamnosus LC705	6	54.3	0	28.3(3.98－200)	<.001	4.42(0－7.00)	0(0-0)	<.001
	24	24.4	16.7	1.46(0.64－3.36)	.336	0(0－3.32)	0(0-0)	.288
Propionibacterium JS	6	55.3	3.8	14.4(3.61－57.3)	<.001	3.74(0－5.98)	0(0-0)	<.001
	24	14.6	12.5	1.17(0.41－3.35)	.769	0(0－0)	0(0-0)	.966
Bifidobacteria total	6	97.9	86.5	1.13(1.01－1.27)	.039	9.3(8.76－9.77)	8.5(7.12－9.40)	0.001
	24	90.2	97.9	0.92(0.83－1.03)	.117	8.53(8.00－8.89)	8.06(7.40-8.98)	.338
Lactobacilli total	6	97.9	55.8	1.75(1.37－2.24)	<.001	7.84(6.92－8.45)	4.44(0－7.78)	<.001
	24	70.7	72.9	0.97(0.75－1.26)	.819	4.94(0.0－6.42)	4.29(0.0－5.34)	.318

Values in boldface are statistically significant.
RR, risk ratio.
Values less than the detection limit of 2.7 equal 0.
χ² test.
Mann-Whitney U test.