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. 2018 Dec 14;13(12):e0208886. doi: 10.1371/journal.pone.0208886

Table 1. Distribution of OHI-S and CPI indexes among student's according to socio-demographic characteristics.

Variables Categories N OHI-Sa CPIb
Good
N (%)
Fair
N (%)
Poor
N (%)
Healthy
N (%)
Bleeding
N (%)
Calculus N (%)
gender Boys 503 319(63.4) 183(36.4) 1(0.2) 303(60.2) 184(36.6) 16(3.2)
Girls 485 325(67) 158(32.6) 2(0.4) 336(69.3) 136(28) 13(2.7)
Age(year) 7 153 129(84.3) 24(15.7) 00(0.0) 132(86.3) 19(12.4) 2(1.3)
8 150 121(80.7) 29(19.3) 00(0.0) 121(80.7) 27(18) 2(1.3)
9 158 102(64.6) 56(35.4) 00(0.0) 105(66.5) 49(31) 4(2.5)
10 155 85(54.8) 70(45.2) 00(0.0) 87(56.1) 64(41.3) 4(2.6)
11 178 103(57.9) 72(40.4) 3(1.7) 101(56.7) 72(40.4) 12(6.2)
12 194 104(53.6) 90(46.4) 00(0.0) 93(47.9) 89(45.9) 12(6.2)
Residence district Urban 571 370(64.8) 201(35.2) 00(0.0) 380(66.5) 165(28.9) 26(4.6)
Suburban 417 274(65.7) 140(33.6) 3(0.7) 259(62.1) 155(37.2) 3(0.7)
Dental pain experience Never 284 185(65.1) 97(34.2) 2(0.7) 178(62.7) 91(32) 15(5.3)
Seldom 432 267(61.8) 164(38) 1(0.2) 265(61.3) 156(36.1) 11(2.5)
Often 272 192(70.6) 80(29.4) 00(0.0) 196(72.1) 73(26.8) 3(1.1)
Father’s Education ≤Primary 58 38(65.5) 19(32.8) 1(1.7) 41(70.7) 16(27.6) 1(1.7)
High School 790 517(65.4) 271(34.3) 2(0.3) 512(64.8) 258(32.7) 20(2.5)
>High School 140 89(63.6) 51(36.4) 00(0.0) 86(61.4) 46(32.9) 8(5.7)
Mother’s Education ≤Primary 59 36(61.00) 22(37.30) 1(1.70) 38(64.40) 20(33.90) 1(1.70)
High School 827 546(66.00) 279(33.70) 2(0.20) 539(65.20) 267(32.30) 21(2.50)
>High School 102 62(60.80) 40(39.20) 00(0.00) 62(60.80) 33(32.40) 7(6.90)
Father’s occupation Labor worker 129 82(63.6) 47(36.4) 00(0.0) 77(59.7) 47(36.4) 5(3.9)
Government employee 631 138(61.9) 85(38.1) 00(0.0) 144(64.6) 72(32.3) 7(3.1)
Self-employed 223 420(66.6) 208(33) 3(0.5) 415(65.8) 199(31.5) 17(2.7)
Not employed 5 4(80) 1(20) 00(0.0) 3(60) 2(40) 00(0.0)
Mother’s occupation Labor worker 8 5(62.5) 3(37.5) 00(0.0) 4(50) 4(50) 00(0.0)
Government employee 101 27(45.8) 32(54.2) 00(0.0) 30(50.8) 25(42.4) 4(6.8)
Self-employed 59 73(72.3) 28(27.7) 00(0.0) 75(74.3) 24(23.8) 2(2)
Not employed 820 539(65.7) 278(33.9) 3(0.4) 530(64.6) 267(32.60) 23(2.8)
Parental supervision on oral hygiene Yes 350 213(60.9) 135(38.6) 3(0.4) 210(60) 128(36.6) 12(3.4)
No 638 431(67.6) 206(32.3) 1(0.2) 429(67.2) 192(30.1) 17(2.7)

aOHI-S denoted that present data for Simplified Oral Hygiene Index.

bCPI denoted that present data for Community Periodontal Index