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. 2022 Nov 10;11(11):e34075. doi: 10.2196/34075

Table 2.

Characteristics of primary schools sampled and participating in the Schools Infection Survey (SIS) and the participants eligible and participating in SIS (any survey round).


Schools in sampled LAsa (n=1862), n (%) Sampled schools (n=118), n (%) Participating schools (n=59), n (%) Eligible staff in participating schoolsb (n=3112), n (%) Participating staff (n=1891), n (%) Eligible students in participating schoolsb (n=22,225), n (%) Participating students (n=4654), n (%)
Location

Transmission at time of sampling


Lowc (lower 80% LAs) 545 (29.3) 40 (33.9) 19 (32.2) 1250 (40.2) 647 (34.2) 8844 (39.8) 1523 (32.7)


Highd (top 20% LAs) 1317 (70.7) 78 (66.1) 40 (67.8) 1862 (59.8) 1244 (65.8) 13,381 (60.2) 3131 (67.3)

Urban or rural


Rural hamlet or village or town and fringe 436 (23.4) 15 (12.7) 9 (15.3) 260 (8.4) 177 (9.4) 1621 (7.3) 594 (12.8)


Urban city and town 732 (39.3) 45 (38.1) 20 (33.9) 1176 (37.8) 739 (39.1) 7830 (35.2) 2001 (43)


Urban conurbation 694 (37.3) 58 (49.2) 30 (50.8) 1676 (53.9) 975 (51.6) 12,774 (57.5) 2059 (44.2)
Sociodemographics

School size (tertiles)


Small: <202 students 547 (29.4) 17 (14.4) 10 (17) 230 (7.4) 179 (9.5) 1393 (6.3) 524 (11.3)


Medium: 202 to <338 students 668 (35.9) 43 (36.4) 22 (37.3) 848 (27.2) 630 (33.3) 5258 (23.7) 1320 (28.4)


Large: 338 to 1732 students 630 (33.8) 58 (49.2) 27 (45.8) 2034 (65.4) 1082 (57.2) 15,574 (70.1) 2810 (60.4)


Data not available 17 (0.9) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0)

Index of multiple deprivation of school postcode (2019)


Most deprived 630 (33.8) 43 (36.4) 20 (33.9) 960 (30.8) 666 (35.2) 6685 (30.1) 1111 (23.9)


2 390 (21) 26 (22) 13 (22) 846 (27.2) 378 (20) 6384 (28.7) 927 (19.9)


3 330 (17.7) 19 (16.1) 8 (13.6) 437 (14) 282 (14.9) 3005 (13.5) 512 (11)


4 313 (16.8) 21 (17.8) 14 (23.7) 690 (22.2) 445 (23.5) 4889 (22) 1658 (35.6)


Least deprived 199 (10.7) 9 (7.6) 4 (6.8) 179 (5.8) 120 (6.3) 1262 (5.7) 446 (9.6)

Proportion of students eligible for free school meals band


<10% 474 (25.5) 20 (17) 10 (17) 487 (15.6) 331 (17.5) 3467 (15.6) 1223 (26.3)


10% to <20% 521 (28) 38 (32.2) 22 (37.3) 1078 (34.6) 689 (36.4) 7566 (34) 1769 (38)


20% to <30% 368 (19.8) 28 (23.7) 11 (18.6) 868 (27.9) 391 (20.7) 6933 (31.2) 891 (19.1)


30% to <40% 267 (14.3) 20 (17) 11 (18.6) 446 (14.3) 309 (16.3) 2746 (12.4) 567 (12.2)


40% to 100% 214 (11.5) 12 (10.2) 5 (8.5) 233 (7.5) 171 (9) 1513 (6.8) 204 (4.4)


Data not available 18 (1) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0)
School characteristics

Previous year school absence data (% morning or afternoon absences across year)


Low (1% to 3.7%) 697 (37.4) 31 (26.3) 16 (27.1) 779 (25) 556 (29.4) 5209 (23.4) 1959 (42.1)


Medium (3.8% to 4.6%) 641 (34.4) 44 (37.3) 22 (37.3) 1000 (32.1) 663 (35.1) 7172 (32.3) 1315 (28.3)


High (4.7% to 48.1%) 463 (24.9) 40 (33.9) C (C)e 1155 (37.1) 581 (30.7) 8418 (37.9) 1172 (25.2)


Data not available 61 (3.3) 3 (2.5) C (C)e 178 (5.7) 91 (4.8) 1426 (6.4) 208 (4.5)

Office for Standards in Education, Children's Services and Skills (OFSTED) rating


Inadequate or requires improvement 150 (8.1) 13 (11) 4 (6.8) 273 (8.8) 140 (7.4) 1996 (9) 407 (8.7)


Good 1231 (66.1) 77 (65.3) 39 (66.1) 2095 (67.3) 1221 (64.6) 15,052 (67.7) 2809 (60.4)


Outstanding 242 (13) 18 (15.2) 10 (17) 366 (11.8) 316 (16.7) 2608 (11.7) 1064 (22.9)


Data not available 239 (12.8) 10 (8.5) 6 (10.2) 378 (12.1) 214 (11.3) 2569 (11.6) 374 (8)

Student to teacher ratio


<20 672 (36.1) 45 (38.1) 22 (37.3) 1182 (38) 627 (33.2) 8569 (38.6) 1442 (31)


20 to <51 1113 (59.8) 68 (57.6) 34 (57.6) 1681 (54) 1143 (60.4) 11,890 (53.5) 2964 (63.7)


Data not available 75 (4) 5 (4.2) 3 (5.1) 249 (8) 121 (6.4) 1766 (7.9) 248 (5.3)

School average progress scores in reading, writing, and mathematicsf


Low (−11.77 to −0.70) 497 (26.7) 26 (22) 12 (20.3) 481 (15.5) 318 (16.8) 3388 (15.2) 787 (16.9)


Medium (−0.67 to 0.93) 554 (29.8) 37 (31.4) 21 (35.6) 954 (30.7) 700 (37) 6659 (30) 2108 (45.3)


High (0.97 to 15.33) 572 (30.7) 40 (33.9) 18 (30.5) 941 (30.2) 590 (31.2) 6448 (29) 1157 (24.9)


Data not available 239 (12.8) 15 (12.7) 8 (13.6) 736 (23.7) 283 (15) 5730 (25.8) 602 (12.9)

aLA: local authority.

bEligible: all staff and students in schools, which participated in any of the survey rounds 1, 2, 3, 4, 5, or 6.

cHigh transmission: top 20% LAs when ranked according to SARS-CoV-2 infection per 100,000 population from September 2, 2020, to September 8, 2020.

dLow transmission: lower 80% LAs when ranked according to SARS-CoV-2 infection per 100,000 population from September 2, 2020, to September 8, 2020.

eC: data suppressed (2 smallest categories suppressed).

fAverage of the combined reading, writing, and mathematics scores.