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. 2023 Nov 15;2023(11):CD015215. doi: 10.1002/14651858.CD015215.pub2

Comparison 2. Early ventilation tubes versus watchful waiting (treatment later if required).

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
2.1 Return to normal hearing, randomised by child (long‐term) 1 391 Risk Ratio (M‐H, Random, 95% CI) 0.98 [0.94, 1.03]
2.2 Mean final hearing threshold, randomised by child (short‐term) 1   Mean Difference (IV, Random, 95% CI) Subtotals only
2.3 Mean final hearing threshold (air conduction), randomised by child (medium‐term) 2 351 Mean Difference (IV, Random, 95% CI) ‐1.89 [‐7.32, 3.54]
2.4 Mean final hearing threshold (air‐bone gap), randomised by child, analysed by ear (medium‐term) 1   Mean Difference (IV, Random, 95% CI) Totals not selected
2.4.1 Adjusted for non‐independence of within‐individual measurements, assuming ICC of 0.5 1   Mean Difference (IV, Random, 95% CI) Totals not selected
2.5 Mean final hearing threshold, randomised by child (long‐term) 3   Mean Difference (IV, Random, 95% CI) Subtotals only
2.5.1 Assumed correlation coefficient for Paradise 2007 (left and right ear data combined) of 0.5 3 633 Mean Difference (IV, Random, 95% CI) 0.36 [‐0.41, 1.13]
2.6 Hearing in noise test, randomised by child (long‐term) 1   Mean Difference (IV, Random, 95% CI) Subtotals only
2.6.1 Competing noise from the front (dB) 1 391 Mean Difference (IV, Random, 95% CI) 0.20 [‐0.13, 0.53]
2.6.2 Competing noise from the right (dB) 1 391 Mean Difference (IV, Random, 95% CI) 0.00 [‐0.54, 0.54]
2.6.3 Competing noise from the left (dB) 1 391 Mean Difference (IV, Random, 95% CI) 0.40 [‐0.10, 0.90]
2.7 Change in hearing threshold from baseline, randomised by child (medium‐term) 1 176 Mean Difference (IV, Random, 95% CI) ‐4.60 [‐8.57, ‐0.63]
2.8 Adjusted mean difference in hearing improvement, randomised by child (medium term) 1   Mean Difference (IV, Random, 95% CI) 1.60 [‐0.62, 3.82]
2.9 Adverse event: persistent perforation, randomised by child (medium‐term) 1 161 Risk Difference (M‐H, Random, 95% CI) 0.00 [‐0.03, 0.03]
2.10 Adverse event: persistent perforation, randomised by child (long‐term) 1   Risk Ratio (M‐H, Random, 95% CI) Totals not selected
2.10.1 Adjusted for non‐independence of within‐individual measurements: ICC 0.5 1   Risk Ratio (M‐H, Random, 95% CI) Totals not selected
2.11 Presence/persistence of OME, randomised by child, measured by otoscopy (medium‐term) 1   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
2.11.1 Adjusted for non‐independence of within‐individual measurements, assuming ICC of 0.5 1 113 Risk Ratio (M‐H, Random, 95% CI) 0.39 [0.09, 1.72]
2.12 Presence/persistence of OME, randomised by child, measured by tympanometry (medium‐term) 1   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
2.13 Presence/persistence of OME, mean percentage of days, randomised by child (medium‐term) 1 316 Mean Difference (IV, Random, 95% CI) ‐0.19 [‐0.23, ‐0.15]
2.14 Presence/persistence of OME, randomised by child (long‐term) 3 584 Risk Ratio (M‐H, Random, 95% CI) 1.21 [0.84, 1.74]
2.15 Presence/persistence of OME, adjusted OR, randomised by child (long‐term) 1   Odds Ratio (IV, Random, 95% CI) 0.99 [0.35, 2.83]
2.16 Adverse event: tympanosclerosis (long‐term) 1 375 Risk Ratio (M‐H, Random, 95% CI) 0.91 [0.33, 2.55]
2.16.1 Adjusted for non‐independence of within‐individual measurements: ICC 0.5 1 375 Risk Ratio (M‐H, Random, 95% CI) 0.91 [0.33, 2.55]
2.17 Adverse event: fibrosis (long‐term) 1   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
2.17.1 Adjusted for non‐independence of within‐individual measurements: ICC 0.5 1 375 Risk Ratio (M‐H, Random, 95% CI) 0.61 [0.10, 3.60]
2.18 Adverse event: segmental atrophy (long‐term) 1   Risk Ratio (M‐H, Random, 95% CI) Totals not selected
2.18.1 Adjusted for non‐independence of within‐individual measurements. Assumed ICC 0.5 1   Risk Ratio (M‐H, Random, 95% CI) Totals not selected
2.19 Adverse event: retraction pocket with other abnormality (long‐term) 1   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
2.19.1 Adjusted for non‐independence of within‐individual measurements; assumed ICC 0.5 1 374 Risk Ratio (M‐H, Random, 95% CI) 0.91 [0.06, 14.41]
2.20 Receptive language development, Reynell test, randomised by child (medium‐term) 1   Mean Difference (IV, Random, 95% CI) 0.31 [‐0.03, 0.65]
2.21 Receptive language development, Reynell test, adjusted MD (medium‐term) 1   Mean Difference (IV, Random, 95% CI) 0.39 [0.04, 0.74]
2.22 Receptive language, Reynell test, randomised by child (long‐term) 1   Mean Difference (IV, Random, 95% CI) 0.26 [‐0.08, 0.60]
2.23 Receptive language: Reynell test, long‐term, adjusted MD 1   Mean Difference (IV, Random, 95% CI) 0.17 [‐0.21, 0.55]
2.24 Receptive language: WOLD adjusted OR (long‐term) 1   Odds Ratio (IV, Random, 95% CI) 1.58 [0.59, 4.24]
2.25 Receptive language, mean difference (months) in improvement in Reynell test score (equivalent age‐real age): medium‐term 1   Mean Difference (IV, Random, 95% CI) 1.01 [‐0.14, 2.16]
2.26 Receptive language, adjusted mean difference (months) in improvement in Reynell test score (equivalent age ‐ real age): medium‐term 1   Mean Difference (IV, Random, 95% CI) 0.71 [‐0.28, 1.70]
2.27 Expressive language development: Reynell test (medium‐term) 1   Mean Difference (IV, Random, 95% CI) 0.38 [‐0.00, 0.76]
2.28 Expressive language development: Reynell test, medium‐term, adjusted MD 1   Mean Difference (IV, Random, 95% CI) 0.42 [0.02, 0.82]
2.29 Expressive language development: Reynell test (long‐term) 1   Mean Difference (IV, Random, 95% CI) 0.31 [‐0.07, 0.69]
2.30 Expressive language development: Reynell test, long‐term, adjusted MD 1   Mean Difference (IV, Random, 95% CI) 0.14 [‐0.28, 0.56]
2.31 Expressive language: WOLD adjusted OR (long‐term) 1   Odds Ratio (IV, Random, 95% CI) 2.10 [0.78, 5.65]
2.32 Expressive language, MD (months) in improvement in Schlichting test score (equivalent age‐real age): medium‐term 1   Mean Difference (IV, Random, 95% CI) ‐0.53 [‐2.19, 1.13]
2.33 Expressive language, adjusted mean difference (months) in improvement in Schlichting test score (equivalent age‐real age): medium‐term 1   Mean Difference (IV, Random, 95% CI) 0.96 [‐0.43, 2.35]
2.34 Non‐word repetition total score, adjusted OR (long‐term) 1   Odds Ratio (IV, Random, 95% CI) 1.69 [0.64, 4.47]
2.35 Reading, WORD test, adjusted OR (long‐term) 1   Odds Ratio (IV, Random, 95% CI) Subtotals only
2.36 Spelling, ALSPAC test, adjusted OR (long‐term) 1   Odds Ratio (IV, Random, 95% CI) 0.90 [0.33, 2.45]
2.37 Phoneme deletion, adjusted OR (long‐term) 1   Odds Ratio (IV, Random, 95% CI) 0.84 [0.32, 2.20]
2.38 Cognitive development: Griffiths practical reasoning (medium‐term) 1   Mean Difference (IV, Random, 95% CI) 2.40 [‐3.78, 8.58]
2.39 Cognitive development: IQ (WISC‐III UK short form) adjusted OR (long‐term) 1   Odds Ratio (IV, Random, 95% CI) Totals not selected
2.40 Behaviour, Richman score (medium‐term) 1 150 Mean Difference (IV, Random, 95% CI) ‐0.65 [‐1.85, 0.55]
2.41 Behaviour, Richman score, dichotomised (medium‐term) 1 150 Risk Ratio (M‐H, Random, 95% CI) 0.63 [0.42, 0.96]
2.42 Behaviour, Richman score, adjusted OR (medium‐term) 1   Odds Ratio (IV, Random, 95% CI) 1.16 [0.27, 4.90]
2.43 Behaviour, Richman score (long‐term) 1 123 Mean Difference (IV, Random, 95% CI) 0.90 [‐0.27, 2.07]
2.44 Behaviour, Richman score, dichotomised (long‐term) 1 123 Risk Ratio (M‐H, Random, 95% CI) 1.22 [0.62, 2.40]
2.45 Behaviour: SDQ teacher report, total, adjusted OR (long‐term) 1   Odds Ratio (IV, Random, 95% CI) 2.05 [0.62, 6.74]
2.46 Parent‐child interaction: Erickson child scale (medium‐term) 1 165 Mean Difference (IV, Random, 95% CI) ‐0.34 [‐0.56, ‐0.12]
2.47 Parent‐child interaction: Erickson parent scale (medium‐term) 1 165 Mean Difference (IV, Random, 95% CI) ‐0.42 [‐0.67, ‐0.17]
2.48 Generic health‐related quality of life: TAIQOL (medium‐term) 1   Mean Difference (IV, Fixed, 95% CI) Subtotals only
2.48.1 Vitality 1 165 Mean Difference (IV, Fixed, 95% CI) ‐0.10 [‐1.95, 1.75]
2.48.2 Appetite 1 165 Mean Difference (IV, Fixed, 95% CI) 0.40 [‐3.77, 4.57]
2.48.3 Communication 1 165 Mean Difference (IV, Fixed, 95% CI) 0.30 [‐5.11, 5.71]
2.48.4 Motoric 1 165 Mean Difference (IV, Fixed, 95% CI) 0.00 [‐2.51, 2.51]
2.48.5 Social 1 165 Mean Difference (IV, Fixed, 95% CI) 0.00 [‐2.49, 2.49]
2.48.6 Anxiety 1 165 Mean Difference (IV, Fixed, 95% CI) 0.30 [‐3.04, 3.64]
2.48.7 Aggression 1 165 Mean Difference (IV, Fixed, 95% CI) 0.30 [‐5.82, 6.42]
2.48.8 Eating 1 165 Mean Difference (IV, Fixed, 95% CI) ‐0.10 [‐1.63, 1.43]
2.48.9 Sleeping 1 165 Mean Difference (IV, Fixed, 95% CI) 0.00 [‐5.70, 5.70]
2.49 Parental stress, Parental Stress Index, short form (long‐term) 1 383 Mean Difference (IV, Random, 95% CI) 0.00 [‐4.12, 4.12]
2.50 Literacy (long‐term) 1   Mean Difference (IV, Random, 95% CI) Subtotals only
2.50.1 Woodcock Reading Mastery Tests: Word Identification subtest 1 391 Mean Difference (IV, Random, 95% CI) ‐1.00 [‐3.28, 1.28]
2.50.2 Woodcock Reading Mastery Tests: Word Attack subtest 1 391 Mean Difference (IV, Random, 95% CI) ‐1.00 [‐3.68, 1.68]
2.50.3 Woodcock Reading Mastery Tests: Passage Comprehension subtest 1 391 Mean Difference (IV, Random, 95% CI) ‐1.00 [‐3.38, 1.38]
2.50.4 Oral reading fluency test: Children in grade 3 1 74 Mean Difference (IV, Random, 95% CI) ‐9.00 [‐26.58, 8.58]
2.50.5 Oral reading fluency test: Children in grade 4 1 184 Mean Difference (IV, Random, 95% CI) 0.00 [‐10.70, 10.70]
2.50.6 Oral reading fluency test: Children in grade 5 1 105 Mean Difference (IV, Random, 95% CI) ‐5.00 [‐18.98, 8.98]
2.50.7 Oral reading fluency test: Children in grade 6 1 21 Mean Difference (IV, Random, 95% CI) 6.00 [‐27.42, 39.42]
2.50.8 Woodcock–Johnson III Tests of Achievement: Spelling subtest 1 390 Mean Difference (IV, Random, 95% CI) ‐1.00 [‐3.89, 1.89]
2.50.9 Woodcock–Johnson III Tests of Achievement: Writing Samples subtest 1 387 Mean Difference (IV, Random, 95% CI) ‐1.00 [‐3.89, 1.89]
2.51 Phonological awareness (long‐term) 1   Mean Difference (IV, Random, 95% CI) Subtotals only
2.51.1 Comprehensive Test of Phonological Processing: Elision subtest 1 391 Mean Difference (IV, Random, 95% CI) ‐0.10 [‐0.91, 0.71]
2.51.2 Comprehensive Test of Phonological Processing: Rapid Letter Naming subtest 1 389 Mean Difference (IV, Random, 95% CI) ‐0.30 [‐0.79, 0.19]
2.52 Attention, impulsivity and psychosocial function, long‐term (1): disruptive behaviour disorders, child behaviour and impairment rating 1   Mean Difference (IV, Random, 95% CI) Subtotals only
2.52.1 Disruptive Behavior Disorders Rating Scale: Inattention factor: Parent's rating 1 390 Mean Difference (IV, Random, 95% CI) 0.05 [‐0.08, 0.18]
2.52.2 Disruptive Behavior Disorders Rating Scale: Inattention factor: Teacher's rating 1 382 Mean Difference (IV, Random, 95% CI) 0.04 [‐0.11, 0.19]
2.52.3 Disruptive Behavior Disorders Rating Scale: Impulsivity and overactivity factor: Parent's rating 1 390 Mean Difference (IV, Random, 95% CI) 0.10 [‐0.01, 0.21]
2.52.4 Disruptive Behavior Disorders Rating Scale: Impulsivity and overactivity factor: Teacher's rating 1 382 Mean Difference (IV, Random, 95% CI) 0.08 [‐0.04, 0.20]
2.52.5 Disruptive Behavior Disorders Rating Scale: Oppositional defiant factor: Parent's rating 1 390 Mean Difference (IV, Random, 95% CI) 0.05 [‐0.06, 0.16]
2.52.6 Disruptive Behavior Disorders Rating Scale: Oppositional defiant factor: Teacher's rating 1 382 Mean Difference (IV, Random, 95% CI) 0.00 [‐0.11, 0.11]
2.52.7 Child Behavior Checklist: Total Problems score, parent’s rating 1 390 Mean Difference (IV, Random, 95% CI) 2.00 [‐0.38, 4.38]
2.52.8 Child Behavior Checklist: Total Problems score, teacher’s rating 1 380 Mean Difference (IV, Random, 95% CI) 2.00 [‐0.21, 4.21]
2.52.9 Impairment Rating Scales: Overall functioning, parent’s rating 1 390 Mean Difference (IV, Random, 95% CI) 0.14 [‐0.13, 0.41]
2.52.10 Impairment Rating Scales: Overall functioning, teacher’s rating 1 382 Mean Difference (IV, Random, 95% CI) 0.26 [‐0.18, 0.70]
2.53 Attention, impulsivity and psychosocial function, long‐term (2): social skills 1   Mean Difference (IV, Random, 95% CI) Subtotals only
2.53.1 Attention, impulsivity and psychosocial function: Social Skills Rating System: parent version 1 388 Mean Difference (IV, Random, 95% CI) ‐2.00 [‐5.68, 1.68]
2.53.2 Attention, impulsivity and psychosocial function: Social Skills Rating System: teacher version 1 370 Mean Difference (IV, Random, 95% CI) ‐1.00 [‐3.65, 1.65]
2.54 Attention, impulsivity and psychosocial function, long‐term: Visual and auditory continuous performance 1   Mean Difference (IV, Random, 95% CI) Subtotals only
2.54.1 Visual Continuous Performance Test: Inattention 1 391 Mean Difference (IV, Random, 95% CI) 0.20 [‐2.66, 3.06]
2.54.2 Visual Continuous Performance Test: Impulsivity 1 391 Mean Difference (IV, Random, 95% CI) 0.60 [‐2.58, 3.78]
2.54.3 Auditory Continuous Performance Test: Inattention 1 308 Mean Difference (IV, Random, 95% CI) ‐0.30 [‐2.00, 1.40]
2.54.4 Auditory Continuous Performance Test: Impulsivity 1 307 Mean Difference (IV, Random, 95% CI) ‐0.90 [‐3.26, 1.46]
2.55 Intelligence and academic achievement (long‐term) 1   Mean Difference (IV, Random, 95% CI) Subtotals only
2.55.1 Wechsler Abbreviated Scale of Intelligence 1 391 Mean Difference (IV, Random, 95% CI) 0.00 [‐2.68, 2.68]
2.55.2 Calculation subtest of the Woodcock–Johnson III Tests of Achievement 1 389 Mean Difference (IV, Random, 95% CI) 0.00 [‐2.58, 2.58]