Table 1. Demographic, Disease, and Treatment Characteristics of Participants Who Completed the Study.

Characteristic	Total	Prednisone	Placebo	Effect size % (95% CI)
Participants, n	72	33	39
Age, mean (SD), y	49.4 (14.9)	48.8 (15.3)	49.9 (14.7)	0.07 (–0.06 to 0.32)
Male sex, No. (%)	36 (50)	18 (54)	18 (46)	8.4 (–14.7 to 31.5)
Race, No. (%)
White non-Hispanic	60 (83)	30 (91)	30 (77)	14.0 (–14.9 to 42.9)
White Hispanic	4 (6)	2 (6)	2 (5)	0.9 (–28.7 to 30.6)
Black	2 (3)	0	2 (5)	–5.1 (–35.7 to 25.4)
Asian and Pacific Islander	5 (7)	1 (3)	4 (10)	–7.2 (–36.6 to 22.1)
Other	1 (1)	0	1 (3)	–2.6 (–33.5 to 28.4)
Comorbidities, No. (%)
Asthma	20 (28)	10 (30)	10 (26)	4.7 (–19.9 to 29.2)
Allergy	16 (22)	5 (15)	11 (3)	–13.1 (–38.5 to 12.4)
Depression	9 (13)	7 (21)	2 (5)	16.1 (–11.3 to 43.4)
Smoking	6 (8)	2 (6)	4 (10)	–4.2 (–33.1 to 24.7)
Preoperative score, mean, (SD)
SNOT-22	43.4 (21.8)	43.8 (21.5)	43.0 (22.4)	0.04 (–0.02 to 0.35)
Lund-Kennedy endoscopy	3.3 (2.8)	3.8 (3.1)	2.9 (2.5)	0.32 (–0.30 to 0.94)
Lund-Mackay radiograph	6.6 (4.3)	7.1 (4.2)	6.2 (4.4)	0.21 (–0.19 to 0.61)
Surgery characteristic, No. (%)
Revision	38 (52)	21 (64)	17 (44)	20.0 (–2.9 to 42.9)
Unilateral	7 (10)	3 (10)	4 (10)	–1.2 (–29.7 to 27.4)
Bilateral	65 (90)	30 (90)	35 (90)	1.2 (–29.8 to 32.1)
Procedure, No. (%)
Maxillary antrostomy	69 (96)	32 (97)	37 (95)	2.1 (–30.7 to 34.8)
Anterior ethmoidectomy	68 (94)	32 (97)	36 (93)	4.7 (–27.6 to 37.0)
Posterior ethmoidectomy	63 (88)	30 (91)	33 (85)	6.3 (–27.6 to 36.4)
Sphenoid sinusotomy	53 (74)	22 (67)	31 (79)	–12.8 (–39.0 to 13.3)
Frontal sinusotomy	51 (71)	21 (64)	30 (77)	–13.3 (–38.8 to 12.3)
Endoscopic septoplasty	40 (56)	20 (61)	20 (51)	9.3 (–14.1 to 32.8)
Inferior turbinate reduction	42 (58)	17 (52)	25 (64)	–12.6 (–36.2 to 11.0)
Concha bullosa resection	17 (23)	7 (21)	10 (26)	–4.4 (–29.8 to 20.9)