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. 2020 Feb 21;8(1):20. doi: 10.3390/dj8010020

Table 2.

Runs test for the randomness of the data sequence.

Variables DP (n = 35) MHP (n = 26) Pooled Sample (n = 61)
n 0 n 1 R p n 0 n 1 R p n 0 n 1 R Z p
Sex c 16 19 17 0.730 15 11 12 0.544 31 30 29 −0.644 0.520
Civil status a 2 33 5 1 6 20 9 0.562 8 53 13 −1.100 0.271
Occupation 18 17 15 0.303 12 14 10 0.160 31 28 25 −1.428 0.153
Schooling 14 21 19 0.724 13 13 13 0.836 27 34 34 0.759 0.448
SSES b 14 21 19 0.724 15 11 13 0.837 29 32 33 0.407 0.684
Age 19 16 21 0.390 12 14 15 0.692 30 31 29 −0.644 0.520
BDI-II c 15 20 14 0.164 14 12 16 0.428 38 23 26 −1.006 0.314
OHHS c 16 19 15 0.300 14 12 18 0.065 31 30 27 −1.160 0.246
OHIP-14-PD c 21 14 13 0.107 13 13 16 0.554 32 29 34 0.666 0.505
CAL c 19 16 14 0.166 12 14 12 0.551 28 33 22 −2.417 0.016
IL-1β c 22 12 14 0.341 20 4 6 0.163 43 15 16 −2.515 0.012
IL-6 c 22 13 15 0.462 16 8 11 0.829 39 20 24 −1.010 0.312
MMP-8 c 22 13 21 0.204 15 9 8 0.060 36 23 30 0.258 0.797

Note. Cut-off point: a = mode, b = medium, and c = arithmetic mean. Statistics: n0 = number of cases < arithmetic mean or median, n1 = number of cases ≥ arithmetic mean or median, R = number of runs, and p = exact two-tailed probability value. Samples: DP = dental patients with periodontitis, MHP = mental health patients with depressive symptomatology, and Pooled sample = union of two patient samples. Variables: SSES = subjective socioeconomic status, BDI-II = total score in the Beck Depression Inventory-II, OHHS= total score in the Oral Hygiene Habits Scale, OHIP-14-PD = total score in the Oral Health Impact Profile applied to Periodontal Disease, CAL = clinical attachment loss, IL-1β = salivary interleukin 1 beta concentration, IL-6 = salivary interleukin 6 concentration, and MMP-8 = salivary matrix metalloproteinase-8 concentration.