See summary below which I copy and pasted from an old thread on this subject.
I was baptised in the early 60s, so it wasn't a dedication to an organisation. I haven't associated for 20 years but as my wife is still in, I do occasionally bump into members of the congregation, besides which my mom and dad and other family members are still in. However, if I were to be pushed by the elders into saying that I no longer considered myself one Jehovah's Witnesses after all this time then they would announce that at the hall and those I do currently speak with would avoid me like the plague.
On the other hand, I was baptised as a Catholic at about 1 month old and have never practiced but I am sure that if I said I no longer consider my a Catholic, it won't mean that all the Catholics in my town would suddenly start avoiding me.
Baptismal questions from the August 1, 1966 Watchtower, p. 465:
(1) Have you recognized yourself before Jehovah God as a sinner who needs salvation, and have you acknowledged to him that this salvation proceeds from him, the Father, through his Son Jesus Christ?
(2) On the basis of this faith in God and in his provision for salvation, have you dedicated yourself unreservedly to God to do his will henceforth as he reveals it to you through Jesus Christ and through the Bible under the enlightening power of the holy spirit?
Baptismal questions from the May 15, 1970 Watchtower, p. 309:
(1) Have you recognized yourself as a sinner and needing salvation from Jehovah God? And have you acknowledged that this salvation proceeds from him and through his ransomer, Christ Jesus?
(2) On the basis of this faith in God and in his provision for redemption have you dedicated yourself unreservedly to Jehovah God, to do his will henceforth as that will is revealed to you through Christ Jesus and through God's Word as his holy spirit makes it plain?
Baptismal questions from the May 1, 1973 Watchtower, p. 280:
(1) Have you repented of your sins and turned around, recognizing yourself before Jehovah God as a condemned sinner who needs salvation, and have you acknowledged to him that this salvation proceeds from him, the Father, through his Son Jesus Christ?
(2) On the basis of this faith in God and in his provision for salvation, have you dedicated yourself unreservedly to God to do his will henceforth as he reveals it to you through Jesus Christ and through the Bible under the enlightening power of the holy spirit?
The newest baptismal questions, from the June 1, 1985 Watchtower:
On the basis of the sacrifice of Jesus Christ, have you repented of your sins and dedicated yourself to Jehovah to do his will?
Do you understand that your dedication and baptism identify you as one of Jehovah's Witnesses in association with God's spirit-directed organization?