Prevalence of Hypothyroidism in Pregnant Women in India: A Meta-Analysis of Observational Studies

Table 2

Subgroup analysis of overall hypothyroidism estimates.

Subgroup categories	Number of studies	ES	95% CI	I ^2 (%)	Between group Q	Between group value
Gestational period (trimester)					3.47	0.1544
First	20	10.99	8.11–14.74	96.6
Second	4	25.51	10.41–50.24	98.1
Any trimester	37	10.05	7.33–13.65	99.1
Prepregnancy thyroid patients’ exclusion					0.03	0.8637
Excluded	25	11.31	8.57–14.79	97.6
Included	36	10.89	7.73–15.14	99.1
Site					17.17	<0.001
Hospital-based	54	12.32	9.97–15.13	98.4
Secondary data	5	6.24	1.83–19.17	99.6
Community-based	2	1.27	0.41–3.86	0.0
Coastal state					3.55	0.0597
Yes	31	8.82	6.45–11.94	98.3
No	29	13.49	9.77–18.34	98.7
Criteria/definition					5.04	0.0247
ATA 2011	35	13.71	10.52–17.67	98.5
Other	26	8.10	5.49–11.80	98.8