Article Figures & Data
Tables
ID group patients
(n = 690)Non-ID group patients
(n = 970 641)n (%) 95% CI n (%) 95% CI Sex
(Missing data: ID, n = 9;
non-ID, n = 6968)Male 348 (51.1) 47.2 to 55.0 392 719 (40.8) 40.5 to 41.0 Female 333 (48.9) 45.0 to 52.8 570 954 (59.2) 59.0 to 59.5 Age group, years <5 26 (3.8) 2.3 to 5.3 61 753 (6.4) 6.3 to 6.5 5–14 78 (11.3) 8.6 to 14.0 51 987 (5.4) 5.3 to 5.4 15–24 104 (15.1) 12.0 to 18.1 86 392 (8.9) 8.8 to 9.0 25–44 223 (32.3) 28.6 to 36.0 226 095 (23.3) 23.1 to 23.5 45–64 212 (30.7) 26.8 to 34.7 269 729 (27.8) 27.6 to 28.0 65–74 30 (4.3) 2.7 to 6.0 123 370 (12.7) 12.6 to 12.9 ≥75 17 (2.5) 1.2 to 3.7 151 315 (15.6) 15.3 to 15.8 There are highly significant differences between the ID and non-ID groups:
For sex: P< 0.001; Rao-Scott χ2 adjusted for GP cluster effect (RS-χ2) 28.7; 1 df.
For age-group: P<0.001; RS-χ2 186.6; 4 df.
Encounters with missing age data excluded from above table: ID 11/701; non-ID 8058/978 699.
CI = confidence intervals. ID = intellectual disability.
- Table 2. Comparison of most frequently prescribed CAPS medication subgroups, non-ID group versus ID group. Top 10 CAPS medication subgroups ranked by frequency
Medication subgroup Medication subgroup rank for ID group
(age–sex standardised)Medication subgroup rank for non-ID group Antipsychoticsa 1 36 Anticonvulsantsa 2 37 Broad spectrum penicillins 3 2 Immunisation 4 14 Antidepressants 5 4 Simple analgesics 6 10 Penicillins or cephalosporins 7 3 Antiulcerants 8 9 Sex or anabolic hormones 9 23 Other antibioticsa 10 8 Antihypertensivesa 18 1 Other cardiovascular systema 13 5 NSAIDsa 38 6 Narcotic analgesicsa 20 7 aNon-overlapping 95% confidence intervals, comparing age–sex standardised ID with non-ID group.
ID = intellectual disability. NSAID = non-steroidal anti-inflammatory drug.
- Table 3. Comparison between the ID (age–sex standardised) and non-ID groups of selected nervous system medication subgroups: rates per 100 encounters.
Medication subgroup ID group ID group (age–sex standardised) Non-ID group n Per 100 encounters (95% CI) Per 100 encounters (95% CI) n Per 100 encounters (95% CI) Anticonvulsantsa 54 7.8 (4.7 to 11.0) 6.0 (3.2 to 8.7) 5764 0.6 (0.6 to 0.6) Antipsychoticsa 48 7.0 (4.8 to 9.1) 6.1 (3.7 to 8.5) 5837 0.6 (0.6 to 0.6) Antidepressants 30 4.3 (2.7 to 6.0) 3.5 (1.9 to 5.2) 36 054 3.7 (3.6 to 3.8) Antianxiety 12 1.7 (0.8 to 2.7) 1.6 (0.6 to 2.6) 18 859 1.9 (1.9 to 2.0) Sedatives or hypnotics 10 1.4 (0.6 to 2.3) 1.3 (0.4 to 2.3) 16 296 1.7 (1.6 to 1.7) aNon-overlapping 95% confidence intervals, comparing ID group (age–sex standardised) with non-ID group.
CI = confidence intervals. ID = intellectual disability.