Table 4.

Strength scores over time.

	Baseline	6 weeks	p-value (baseline to 6 weeks)	3 months	p-value (baseline to 3 months)	6 months	p-value (baseline to 6 months)
External rotation (N), mean (SEM)
Prolotherapy	84 (7)	96 (8)	0.03	91 (10)	0.34	99 (8)	0.01
Corticosteroid	83 (8)	85 (6)	0.58	93 (8)	0.02	96 (9)	0.06
p-value Prolotherapy versus  Corticosteroid	0.9	0.27		0.83		0.75
Internal rotation (N), mean (SEM)
Prolotherapy	89 (7)	98 (7)	0.11	98 (8)	0.19	98 (7)	0.16
Corticosteroid	85 (9)	92 (8)	0.04	97 (9)	0.06	94 (9)	0.14
p-value Prolotherapy versus  Corticosteroid	0.76	0.54		0.92		0.71
Supraspinatus (N), mean (SEM)
Prolotherapy	59 (8)	69 (9)	0.09	77 (8)	0.02	77 (8)	0.02
Corticosteroid	68 (8)	67 (8)	0.75	72 (9)	0.46	71 (9)	0.61
p-value Prolotherapy versus  Corticosteroid	0.41	0.9		0.72		0.65
Lift off (N), mean (SEM)
Prolotherapy	53 (5)	65 (6)	0.09	73 (6)	0.00	72 (5)	0.00
Corticosteroid	50 (6)	60 (5)	0.02	63 (6)	0.03	62 (7)	0.07
p-value Prolotherapy versus  Corticosteroid	0.67	0.51		0.26		0.24

p-values shown in bold are statistically significant (p < 0.05).