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. 2020 Oct 15;20:234. doi: 10.1186/s12905-020-01087-2

Table 2.

Sociodemographic characteristics of surrogates interviewed

n/N(a) % 95% CI(b)
Age (years)
 21–24 6/30 20 [8–39]
 25–29 14/30 47 [29–65]
 30–33 10/30 33 [18–53]
City of recruitment
 Chennai 15/33 45 [29–63]
 Mumbai 16/33 48 [31–66]
 New Delhi 2/33 6 [1–22]
Marital status
 Single (separated, divorced, widow) 7/33 21 [10–39]
 Married (living with husband) 26/33 79

[10–39]

[61–90]

Number of children
 1 11/32 34 [19–53]
 2 16/32 50 [32–68]
 3 5/32 16 [6–34]
Education level
 Illiterate 2/29 7 [1–24]
 Primary (up to 6th) 10/29 34 [19–54]
 Secondary (7th to 11th) 13/29 45 [27–64]
 Graduate school 4/29 14 [5–33]
Professional activity
 Housewife 11/32 34 [19–53]
 Wage-paid employment 21/32 66 [47–81]
Monthly family income (in Indian rupees)
 < 10,000 5/13 38 [15–68]
 10,000 3/13 23 [6–54]
 > 10,000 5/13 38 [15–68]
Religion
 Hindu 22/31 71 [52–85]
 Muslim 5/31 16 [6–34]
 Christian 4/31 13 [4–31]

(a)For each item, the number (N) of surrogates who answered the question is indicated so that the item could be coded

(b)As per recommendations for the analysis of small sample data, confidence intervals were estimated using the Wilson score interval with continuity correction [43]. Contrary to confidence intervals based on the classic approximation by Gaussian law, the Wilson score intervals are non-centered confidence intervals