The subgingival cultivable bacteria of Albanian subjects with different periodontal status compared to a similar population of Spanish subjects: a case control study

Tafaj, Gerila; Iniesta, Margarita; Sanz, Mariano; Herrera, David

doi:10.1186/s12903-022-02121-5

Table 2 Comparison of clinical parameters among periodontal status groups and between countries

From: The subgingival cultivable bacteria of Albanian subjects with different periodontal status compared to a similar population of Spanish subjects: a case control study

		Comparison		n	Mean (SD)	Mean difference	95% CI		p value
		First^a	Second^b	n	Mean (SD)	Mean difference	Lower bound	Upper bound	p value
PD (mm)	Periodontal status group	Health/gingivitis		55	2.13 (0.30)	− 0.77*	− 1.03	− 0.51	< 0.001
		Periodontitis I–II		58	2.91 (0.46)	− 0.81^†	− 1.06	− 0.56	< 0.001
		Periodontitis III–IV		60	3.72 (0.78)	− 1.58^‡	− 1.83	− 1.33	< 0.001
	Country		Spain	90	3.08 (0.90)	0.28^§	0.03	0.54	0.025
			Albania	83	2.79 (0.77)
	Periodontal status by country	Health/gingivitis	Spain	30	2.20 (0.31)	0.14^§	− 0.01	0.31	0.072
			Albania	25	2.05 (0.28)
		Periodontitis I–II	Spain	30	2.98 (0.47)	0.15^§	− 0.08	0.40	0.195
			Albania	28	2.82 (0.44)
		Periodontitis III–IV	Spain	30	4.06 (0.63)	0.67^§	0.31	1.04	< 0.001
			Albania	30	3.38 (0.78)
CAL (mm)	Periodontal status group	Health/gingivitis		55	0.25 (0.25)	− 2.80*	− 3.15	− 2.46	< 0.001
		Periodontitis I–II		58	3.06 (0.47)	− 1.56^†	− 1.89	− 1.22	< 0.001
		Periodontitis III–IV		60	4.62 (1.16)	− 4.36^‡	− 4.70	− 4.02	< 0.001
	Country		Spain	90	2.70 (1.93)	− 0.00^§	− 0.59	0.58	0.985
			Albania	83	2.71 (1.98)
	Periodontal status by country	Health/gingivitis	Spain	30	0.27 (0.25)	0.04^§	− 0.09	0.18	0.516
			Albania	25	0.22 (0.26)
		Periodontitis I–II	Spain	30	3.13 (0.46)	0.15^§	− 0.08	0.40	0.201
			Albania	28	2.98 (0.46)
		Periodontitis III–IV	Spain	30	4.71 (0.86)	0.17^§	− 0.43	0.78	0.566
			Albania	30	4.53 (1.41)
BoP (%)	Periodontal status group	Health/gingivitis		55	9.87 (10.57)	− 25.10*	− 34.69	− 15.51	< 0.001
		Periodontitis I–II		58	34.97 (21.19)	− 29.04^†	− 38.43	− 19.65	< 0.001
		Periodontitis III–IV		60	64.02 (27.28)	− 54.14^‡	− 63.66	− 44.63	< 0.001
	Country		Spain	90	37.70 (29.69)	1.33^§	− 7.85	10.52	0.775
			Albania	83	36.37 (31.53)
	Periodontal status by country	Health/gingivitis	Spain	30	10.99 (12.94)	2.46^§	− 3.01	− 7.94	0.370
			Albania	25	8.52 (6.75)
		Periodontitis I–II	Spain	30	36.62 (21.35)	3.40^§	− 7.81	14.62	0.545
			Albania	28	33.21 (21.27)
		Periodontitis III–IV	Spain	30	65.51 (23.30)	2.98^§	− 11.24	17.20	0.676
			Albania	30	62.52 (31.08)
PlI (%)	Periodontal status group	Health/gingivitis		55	35.36 (23.52)	− 33.21*	− 44.48	− 21.95	< 0.001
		Periodontitis I–II		58	68.58 (27.35)	− 14.66^†	− 25.68	− 3.64	0.005
		Periodontitis III–IV		60	83.25 (23.15)	− 47.88^‡	− 59.05	− 36.71	< 0.001
	Country		Spain	90	64.21 (24.97)	2.29^§	− 7.41	12.00	0.641
			Albania	83	61.91 (37.74)
	Periodontal status by country	Health /gingivitis	Spain	30	48.84 (20.88)	29.65^§	19.97	39.34	< 0.001
			Albania	25	19.18 (14.79)
		Periodontitis I–II	Spain	30	66.76 (.5724)	− 3.77^§	− 18.40	10.85	0.607
			Albania	28	70.53 (30.39)
		Periodontitis III–IV	Spain	30	77.02 (21.31)	− 12.45^§	− 24.06	− 0.83	0.036
			Albania	30	89.47 (23.58)

PD, probing depth; CAL, clinical attachment loss; BoP, bleeding on probing; PlI, plaque index; n, sample size; SD, standard deviation; CI, confidence interval
^aOne-way ANOVA test
^bStudent t test
*Periodontal health/gingivitis group versus periodontitis I–II group
^†Periodontitis I–II group versus periodontitis III–IV group
^‡Periodontal health/gingivitis group versus periodontitis III–IV group
^§Spain versus Albania

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