. 2014 Oct 22;9(10):e110421. doi: 10.1371/journal.pone.0110421

Table 1. Demographic and clinical variables.

variables	Healthy group (n = 20)	AgP group (n = 20)	p value
Age(years)^a	24.40±0.3434	26.80±1.615	0.1543
Gender(n; male/female)^b	10/10	6/14	0.197
BI^c	2 (1–3)	4 (3–4)	<0.01
PD(mm)^c	2.5 (2.0–3.0)	7.0 (5.3–7.0)	<0.01
CAL(mm)^c	0	6.0 (5.0–7.75)	<0.01
CPT Conc. in GCF(µg/mL) ^a	471±51.120	2332±383.200	<0.01
CPT amount in GCF(ng)^a	87.82±12.38	4378±741.4	<0.01

Data are given as Mean ± SD or number of subjects, or median (lower-upper quartile).

Between-group comparisons were performed using the ^at-test, ^bchi-square test, or ^cMann-Whitney U-test.

Values in bold indicate a statistically significant difference (p<0.01).

AgP, generalized aggressive periodontitis; BI, bleeding index; PD, probing depth; CAL, clinical attachment loss; CPT Conc., calprotectin concentration; CPT amount, the amount of calprotectin; GCF, gingival crevicular fluid.