Table 3.
Characteristics of secondary schools sampled and participating in the Schools Infection Survey (SIS) and the participants eligible and participating in SIS (any survey round).
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Schools in sampled LAsa (n=368), n (%) | Sampled schools (n=185), n (%) | Participating schools (n=97), n (%) | Eligible staff in participating schoolsb (n=12,146), n (%) | Participating staff (n=5852), n (%) | Eligible students in participating schoolsc (n=56,519), n (%) | Participating students (n=10,188), n (%) | |||||||||
| Location | ||||||||||||||||
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Transmission at time of sampling | |||||||||||||||
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Lowd (lower 80% LAs) | 109 (29.6) | 53 (28.6) | 34 (35) | 4536 (37.3) | 2126 (36.3) | 19,748 (34.9) | 4114 (40.4) | |||||||
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Highe (top 20% LAs) | 259 (70.4) | 132 (71.3) | 63 (64.9) | 7610 (62.7) | 3726 (63.7) | 36,771 (65.1) | 6074 (59.6) | |||||||
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Urban or rural | |||||||||||||||
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Rural hamlet or village or town and fringe | 44 (12) | 12 (6.5) | 6 (6.2) | 581 (4.8) | 322 (5.5) | 2516 (4.5) | 545 (5.3) | |||||||
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Urban city and town | 169 (45.9) | 76 (41.1) | 47 (48.5) | 5869 (48.3) | 2849 (48.7) | 29,227 (51.7) | 6056 (59.4) | |||||||
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Urban conurbation | 155 (42.1) | 97 (52.4) | 44 (45.4) | 5696 (46.9) | 2681 (45.8) | 24,776 (43.8) | 3587 (35.2) | |||||||
| Sociodemographics | ||||||||||||||||
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School size (tertiles) | |||||||||||||||
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Small: <202 students | 147 (40) | 65 (35.1) | 35 (36.1) | 3085 (25.4) | 1535 (26.2) | 16,280 (28.8) | 2965 (29.1) | |||||||
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Medium: 202 to <338 students | 128 (34.8) | 66 (35.7) | 37 (38.1) | 4371 (36) | 2279 (38.9) | 22,334 (39.5) | 3873 (38) | |||||||
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Large: 338 to 1732 students | 90 (24.5) | C (C)f | 25 (25.8) | 4690 (38.6) | 2038 (34.8) | 17,905 (31.7) | 3350 (32.9) | |||||||
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Data not available | 3 (0.8) | C (C)f | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | |||||||
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Index of multiple deprivation of school postcode (2019) | |||||||||||||||
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Most deprived | 122 (33.2) | 65 (35.1) | 32 (33) | 3539 (29.1) | 1677 (28.7) | 15,666 (27.7) | 2156 (21.2) | |||||||
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2 | 92 (25) | 53 (28.6) | 28 (28.9) | 3902 (32.1) | 1850 (31.6) | 16,612 (29.4) | 2459 (24.1) | |||||||
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3 | 56 (15.2) | 24 (13) | 12 (12.4) | 1487 (12.2) | 652 (11.1) | 6383 (11.3) | 1412 (13.9) | |||||||
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4 | 58 (15.8) | 26 (14.1) | 14 (14.4) | 1572 (12.9) | 731 (12.5) | 8805 (15.6) | 1601 (15.7) | |||||||
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Least deprived | 40 (10.9) | 17 (9.2) | 11 (11.3) | 1646 (13.6) | 942 (16.1) | 9053 (16) | 2560 (25.1) | |||||||
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Proportion of students eligible for free school meals band | |||||||||||||||
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<10% | 61 (16.6) | 24 (13) | 15 (15.5) | 1914 (15.8) | 883 (15.1) | 11,675 (20.7) | 3089 (30.3) | |||||||
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10% to <20% | 133 (36.1) | 65 (35.1) | 40 (41.2) | 5350 (44) | 2596 (44.4) | 23,006 (40.7) | 4721 (46.3) | |||||||
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20% to <30% | 79 (21.5) | 42 (22.7) | 19 (19.6) | 2581 (21.2) | 1206 (20.6) | 11,392 (20.2) | 1204 (11.8) | |||||||
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30% to <40% | 60 (16.3) | 36 (19.5) | 14 (14.4) | 1403 (11.6) | 652 (11.1) | 6303 (11.2) | 809 (7.9) | |||||||
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40% to 100% | 32 (8.7) | C (C)f | 9 (9.3) | 898 (7.4) | 515 (8.8) | 4143 (7.3) | 365 (3.6) | |||||||
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Data not available | 3 (0.8) | C (C)f | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | |||||||
| School characteristics | ||||||||||||||||
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Previous year school absence data (% morning or afternoon absences across year) | |||||||||||||||
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Low (1% to 3.7%) | 27 (7.3) | 15 (8.1) | 9 (9.3) | 1158 (9.5) | 536 (9.2) | 6344 (11.2) | 1549 (15.2) | |||||||
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Medium (3.8% to 4.6%) | 57 (15.5) | 24 (13) | 12 (12.4) | 1358 (11.2) | 607 (10.4) | 7606 (13.5) | 1304 (12.8) | |||||||
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High (4.7% to 48.1%) | 267 (72.6) | 139 (75.1) | 72 (74.2) | 9141 (75.3) | 4510 (77.1) | 40,115 (71) | 7030 (69) | |||||||
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Data not available | 17 (4.6) | 7 (3.8) | 4 (4.1) | 489 (4) | 199 (3.4) | 2454 (4.3) | 305 (3) | |||||||
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Office for Standards in Education, Children's Services and Skills (OFSTED) rating | |||||||||||||||
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Inadequate or requires improvement | 88 (23.9) | 46 (24.9) | 19 (19.6) | 2136 (17.6) | 1120 (19.1) | 11,203 (19.8) | 1588 (15.6) | |||||||
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Good | 157 (42.7) | 79 (42.7) | 42 (43.3) | 5716 (47.1) | 2876 (49.1) | 24,667 (43.6) | 4726 (46.4) | |||||||
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Outstanding | 45 (12.2) | 25 (13.5) | 16 (16.5) | 1949 (16) | 977 (16.7) | 8949 (15.8) | 2450 (24) | |||||||
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Data not available | 78 (21.2) | 35 (18.9) | 20 (20.6) | 2345 (19.3) | 879 (15) | 11,700 (20.7) | 1424 (14) | |||||||
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Student to teacher ratio | |||||||||||||||
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<20 | 329 (89.4) | 164 (88.7) | 83 (85.6) | 10,625 (87.5) | 5193 (88.7) | 49,322 (87.3) | 8884 (87.2) | |||||||
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20 to <51 | 13 (3.5) | 6 (3.2) | 5 (5.2) | 586 (4.8) | 338 (5.8) | 2067 (3.7) | 586 (5.8) | |||||||
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Data not available | 26 (7.1) | 15 (8.1) | 9 (9.3) | 935 (7.7) | 321 (5.5) | 5130 (9.1) | 718 (7) | |||||||
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School average progress scores in reading, writing, mathematicsg | |||||||||||||||
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Low (−1.67 to −0.19) | 132 (35.9) | 68 (36.8) | 35 (36.1) | 3855 (31.7) | 2052 (35.1) | 17,111 (30.3) | 2655 (26.1) | |||||||
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Medium (−0.18 to 0.19) | 106 (28.8) | 46 (24.9) | 19 (19.6) | 2723 (22.4) | 1245 (21.3) | 11,648 (20.6) | 2707 (26.6) | |||||||
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High (0.20 to 2.16) | 95 (25.8) | 52 (28.1) | 30 (30.9) | 4213 (34.7) | 2058 (35.2) | 20,372 (36) | 4134 (40.6) | |||||||
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Data not available | 35 (9.5) | 19 (10.3) | 13 (13.4) | 1355 (11.2) | 497 (8.5) | 7388 (13.1) | 692 (6.8) | |||||||
aLA: local authority.
bEligible staff: all staff in participating schools at any of the survey rounds 1, 2, 3, 4, 5, or 6.
cEligible students: students from the 2 consecutive years sampled in schools participating in rounds 1 to 3 and from all years (except year 11) in schools participating in rounds 4 to 6.
dHigh transmission: top 20% LAs when ranked according to SARS-CoV-2 infection per 100,000 population from September 2, 2020, to September 8, 2020.
eLow transmission: lower than 80% LAs when ranked according to SARS-CoV-2 infection per 100,000 population from September 2, 2020, to September 8, 2020.
fC: data suppressed (2 smallest categories suppressed).
gAverage of the combined reading, writing, and mathematics scores.