Appraisal of Periodontal Condition amongst Leather Manufacturing Plant Workers in Central India: A Prevalence Survey

Table 5

Distribution of mean number of sextant by loss of attachment of subjects according to age code, gender, and plant.

		0–3 mm (0)	4-5 mm (1)	6–8 mm (2)	9–11 mm (3)	>12 mm (4)
		Mean ± SD	Mean ± SD	Mean ± SD	Mean ± SD	Mean ± SD
Age groups (year)	20–35	3.99 ± 2.36	0.7 ± 1.13	0.40 ± 0.80	0.22 ± 0.64	0.17 ± 0.60
	36–50	3.78 ± 2.07	0.70 ± 1.05	0.40 ± 0.80	0.37 ± 0.79	0.52 ± 1.24
	>50	2.22 ± 2.28	1.41 ± 1.51	0.44 ± 0.83	1.33 ± 1.17	1.28 ± 1.61
	Kruskal–Wallis test	35.89	11.5	5.6	21.89	28.32
	value	0.001 (HS)	0.6	0.85	0.001 (HS)	0.001 (HS)
Plant	Tanning	3.43 ± 2.42	0.86 ± 1.31	0.41 ± 0.81	0.61 ± 1.00	0.66 ± 1.31
	Footwear	3.87 ± 2.11	1.11 ± 1.31	0.40 ± 0.80	0.28 ± 0.71	0.31 ± 0.95
	Mann–Whitney U test	78.89	5.21	19.8	241.49	385.93
	value	0.001 (HS)	0.54	0.7	0.001 (HS)	0.001 (HS)
Gender	Male	3.44 ± 2.44	0.80 ± 1.26	0.39 ± 0.79	0.66 ± 1.02	0.69 ± 1.34
	Female	3.70 ± 2.21	1.12 ± 1.36	0.43 ± 0.82	0.34 ± 0.78	0.39 ± 1.04
	Mann–Whitney U test	85.31	4.97	12.8	347.13	389.48
	value	0.001 (HS)	0.59	0.16	0.001 (HS)	0.001 (HS)

HS = highly significant.