Table 1.

SDS descriptive statistics

SDS item/subscale	N	Mean (SD)	Median	Range	Missing (%)
Item 1: ADHD symptoms disrupting work/school
Baseline	428	7.3 (2.1)	8.0	0–10	34 (7.9)
Week 9	424	5.2 (2.7)	5.0	0–10	38 (9.0)
Change (baseline to week 9)	400	−2.0 (2.9)	−2.0	−10 to 10	62 (15.5)
Item 2: ADHD symptoms disrupting social life
Baseline	456	6.2 (2.3)	6.0	0–10	6 (1.3)
Week 9	447	4.6 (2.7)	4.0	0–10	15 (3.4)
Change (baseline to week 9)	446	−1.6 (2.9)	−1.0	−10 to 7	16 (3.6)
Item 3: ADHD symptoms disrupting family life/home responsibilities
Baseline	445	7.0 (2.2)	7.0	0–10	17 (3.8)
Week 9	440	5.1 (2.7)	5.0	0–10	22 (5.0)
Change (baseline to week 9)	434	−1.9 (2.8)	−1.0	−10 to 7	28 (6.5)
Item 4: days lost at school or work in the last weeka
Baseline	398	1.4 (2.0)	0.0	0–7	64 (16.1)
Week 9	395	0.8 (1.6)	0.0	0–7	67 (17.0)
Change (baseline to week 9)	358	−0.5 (1.9)	0.0	−7 to 7	104 (29.1)
Item 5: days underproductive at school or work in the last weekb
Baseline	414	3.5 (2.4)	3.0	0–7	48 (11.6)
Week 9	405	2.2 (2.4)	2.0	0–7	57 (14.1)
Change (baseline to week 9)	379	−1.3 (2.5)	−1.0	−7 to 6	83 (21.9)
SDS total score
Baseline	417	20.5 (5.5)	21.0	0–30	45 (10.8)
Week 9	417	14.9 (7.6)	15.0	0–30	45 (10.8)
Change (baseline to week 9)	388	−5.4 (7.8)	−4.0	−30 to 17	74 (19.1)

Notes:

^aTwo out-of-range responses were excluded at baseline (20, 25) and three out-of-range responses were excluded at week 9 (8, 10);

^bfour out-of-range responses were excluded from item 5 at baseline (10, 10, 14, 35), and four were excluded at week 9 (8, 10, 10, 11).

Abbreviations: ADHD, attention-deficit/hyperactivity disorder; SD, standard deviation; SDS, Sheehan Disability Scale.