Table 4.

Estimated dropout rates for yoga interventions as a function of participant characteristics (medical condition, gender, and age groups). CI: confidence interval.

Condition	Number of studies	Rate [95% CI]
Medical conditions	121	12.48 [10.83, 14.13]
Healthy	47	9.34 [7.16, 11.51]
Test for subgroup differences: Chi 2 = 5.09, df = 1 (p = 0.02), I 2 = 80.3%
Condition, specific	Number of studies	Rate [95% CI]
Musculoskeletal	21	7.54 [4.53, 10.55]
Cardiovascular	16	16.50 [11.03, 21.96]
Psychiatric	22	11.60 [7.38, 15.83]
Oncologic	16	18.04 [11.12, 24.96]
Pulmonary	9	12.95 [5.63, 20.28]
Neurological	10	12.87 [7.22, 18.52]
Endocrine	6	9.17 [1.75, 16.60]
Urogenital	10	11.94 [9.00, 14.89]
Digestive	2	0.83 [−2.90, 4.55]
Pregnancy	7	24.22 [12.38, 36.07]
HIV	2	22.20 [4.30, 40.09]
Test for subgroup differences: Chi 2 = 47.67, df = 10 (p < 0.00001), I 2 = 79.0%
Gender	Number of studies	Rate [95% CI]
Male only	10	3.16 [−0.17, 6.50]
Female only	49	14.19 [11.36, 17.02]
Mixed gender	106	10.98 [9.37, 12.59]
Test for subgroup differences: Chi 2 = 25.44, df = 2 (p < 0.00001), I 2 = 92.1%
Age groups	Number of studies	Rate [95% CI]
Children and adolescents only	7	5.62 [2.44, 8.80]
Adolescents and adults	2	26.61 [11.37, 41.85]
Adults only	82	11.20 [9.33, 13.06]
Elderlies only	10	10.06 [4.62, 15.50]
Adults and elderlies	67	12.86 [10.60, 15.12]
Test for subgroup differences: Chi 2 = 17.74, df = 4 (p = 0.001), I 2 = 77.4%