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. 2014 Mar 18;9(3):e92265. doi: 10.1371/journal.pone.0092265

Table 6. PlantLIBRA's PFS consumer survey – PFS usage patterns, per product used by a respondent, overall and by country.

Finland (n = 665) Germany (n = 446) Italy (n = 417) Romania (n = 464) Spain (n = 465) United Kingdom (n = 417)
n % (95% CI) n % (95% CI) n % (95% CI) n % (95% CI) n % (95% CI) n % (95% CI)
I took it whenever/sporadically 83 12.5 (10.0–15.0) 102 22.9 (19.0–26.8) 73 17.5 (13.9–21.2) 60 12.9 (9.9–16.0) 105 22.6 (18.8–26.4) 145 34.8 (30.2–39.4)
I take it periodically, during those times only 307 46.2 (42.4–50.0) 226 50.7 (46.0–55.3) 172 41.3 (36.5–46.0) 194 41.8 (37.3–46.3) 68 14.6 (11.4–17.8) 105 25.2 (21.0–29.4)
I took it when I had a flare up/worsening of condition 126 19.0 (16.0–21.9) 89 20.0 (16.2–23.7) 128 30.7 (26.3–35.1) 117 25.2 (21.3–29.2) 75 16.1 (12.8–19.5) 103 24.7 (20.6–28.8)
Other reason 140 21.1 (18.0–24.2) 26 5.8 (3.7–8.0) 32 7.7 (5.1–10.2) 51 11.0 (8.1–13.8) 214 46.0 (41.5–50.6) 49 11.8 (8.7–14.9)
Not sure 9 1.4 (0.5–2.2) 3 0.7 (0.0–1.4) 12 2.9 (1.3–4.5) 42 9.1 (6.4–11.7) 3 0.7 (0.0–1.4) 15 3.6 (1.8–5.4)

Questions asked. During the last 12 months, in what months have you taken this supplement? (mark all that apply) Possible responses: Jan, Feb, Mar, Apr, May, June, July, Aug, Sep, Oct, Nov, Dec, All year round; Why did you decide to take this supplement in the months stated? (one answer only) Possible responses: I took it whenever/sporadically; I take it periodically, during those times only; When I had a flare up/worsening of condition; Other reason; Not sure.