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Table 2 Readability scores and text characteristics of PCOS webpages in Google, Bing, and Yahoo search engines

From: Analysis of the quality, accuracy, and readability of patient information on polycystic ovarian syndrome (PCOS) on the internet available in English: a cross-sectional study

Readability scores median (IQR)*

Google (n = 50)

Bing (n = 50)

Yahoo (n = 50)

P

Flesch-Kincaid reading ease

49 (41–56)

48 (42–54)

48 (42–54)

0.787

Flesch-Kincaid grade level

10 (8–11)

10 (9–11)

10 (9–11)

0.787

Gunning-Fog score

12 (11–13)

12 (11–13)

12 (10–13)

0.787

Coleman-Liau

12 (11–13)

12 (11–13)

12 (11–13)

0.571

SMOG

12 (11–13)

12 (11–13)

12 (11–13)

0.923

Automated readability index

9 (7–11)

9 (12–13)

9 (11–13)

0.571

Dale-Chall Readability

7 (6–7)

7 (7–7)

7 (6–7)

0.197

Word count

1132 (807–1922)

923 (648–1444)

891 (681–1518)

0.353

Syllables per word

2 (2–2)

2 (2–2)

2 (2–2)

0.580

Words with more than four syllables

15 (8–27)

14 (10–23)

14 (10–23)

0.830

Words per sentence

13 (11–15)

13 (11–15)

13 (11–14)

0.987

Sentence count

89 (65–147)

76 (47–108)

77 (51–113)

0.383

  1. *IQR – interquartile range.
  2. †Kruskal-Wallis test with a P-value set at 0.05.
  3. ‡Simple measure of gobbledygook (SMOG) index.